All Seasons

Season 1

  • S01E01 Megastructures (Original Summary Version)

    • September 17, 2014
    • YouTube

    An overview of very large artificial constructs from space stations to Dyson spheres. Including building artificial worlds around black holes to how to destroy a star.

  • S01E02 The Fermi Paradox & the Dyson Dilemma

    • January 11, 2015
    • YouTube

    An in-depth look at the Fermi Paradox in terms of Kardashev 2+ civilizations.

  • S01E03 Fermi Paradox Solutions

    • February 6, 2015
    • YouTube

    A Comprehensive list of all the major proposed solutions to Fermi's Paradox, the question of "If there are aliens, where are they?"

  • S01E04 Fermi Paradox: Apocalypse How

    • May 3, 2015
    • YouTube

    A look at various Cataclysmic Scenarios in terms of how they factor into the Fermi Paradox. We'll look at everything from Biowarfare and AI to Nukes and Grey Goo.

  • S01E05 Habitable Planets

    • July 17, 2015
    • YouTube

    First installment of a spin-off of the Fermi Paradox Series, focusing on how very un-Earth-like worlds might support life. This video focuses on how life might exist on worlds like Pluto.

  • S01E06 How does Tidal Locking Work?

    • July 27, 2015
    • YouTube

    This video covers what Tidal Locking is and what causes it, and looks at how this can happen to moons & exoplanets.

  • S01E07 Habitable Planets: Tidally Locked Worlds

    • July 30, 2015
    • YouTube

    The second episode in the series examines Twilight Worlds, planets tidally locked to stars so that one side is always lit and the other side eternal dark. We discuss what life would be like on such a world and how realistic it is for life to arise there or for us colonize them.

  • S01E08 MegaStructures: Orbital Rings & Space Elevators

    • August 5, 2015
    • YouTube

    This video takes an in depth look at Orbital Rings and Space Elevators and is the first installment of a reboot of the original Megastructures video.

  • S01E09 MegaStructures: Skyhooks

    • August 16, 2015
    • YouTube

    The second installment of the series looks at the Skyhook, a type of abridged Space Elevator that allows spacecraft to hook up and get into orbit at much lower launch speeds.

  • S01E10 Habitable Planets: Large Moons

    • August 26, 2015
    • YouTube

    In this episode we look at moons the size of Earth, what they'd be like, and the possibility of life evolving or colonizing such a world.

  • S01E11 Megastructures: Launch Loops, Mass Drivers, and Space Fountains

    • September 2, 2015
    • YouTube

    Episode 3 is our final look at Megastructures designed to help carry cargo and people into space at far lower prices than we currently pay. Main focus is on the Lofstrom Launch Loop, StarTram Mass Driver designs, and the Space Fountain.

  • S01E12 Terraforming Techniques

    • October 1, 2015
    • YouTube

    This video gives an overview of various terraforming concepts and hurdles from those using near-horizon technologies to very advanced and speculative tech.

  • S01E13 The Impact of Nuclear Fusion

    • November 21, 2015
    • YouTube

    A detailed look at how Nuclear Fusion could impact our economy and civilization, from agriculture and water shortages to space stations and interstellar travel.

  • S01E14 Habitable Planets: Life on Rogue Planets

    • November 27, 2015
    • YouTube

    The Habitable Planets series continues with a look at Rogue & Steppenwolf planets in the Interstellar Void. This video considers both the possibility of life arising on such planets and the prospects for colonizing them.

  • S01E15 Megastructures: Rotating Habitats

    • December 7, 2015
    • YouTube

    In this fourth installment of the series we take a lengthy look at Rotating Habitats, large space stations that simulate gravity via spin and can replicate Earth-like environments.

  • S01E16 Interstellar Colonization

    • December 23, 2015
    • YouTube

    Today we look at the subject of Interstellar Colonization, from the ship concepts and propulsion methods all the way to intergalactic colonization.

Season 2

  • S02E01 Moon Base Concepts

    • February 1, 2016
    • YouTube

    A look at the difficulties of returning to the moon to establish a permanent presence and many of the concepts and ideas envisioned to help accomplish that goal.

  • S02E02 Megastructures: Shellworlds

    • February 27, 2016
    • YouTube

    Today we take a look at Artificial Planets constructed as Shells around a filler mass, such as a black hole.

  • S02E03 Megastructures: Discworlds

    • March 4, 2016
    • YouTube

    A look at Discworlds, Flat Earths, and Alderson Discs in terms of how they'd function and how they might be built.

  • S02E04 Micro Black Holes, Virtual Particles, and Hawking Radiation

    • March 12, 2016
    • YouTube

    A look into how very small black holes function, are created and destroyed, and how they might be used for power. This is the first episode of a three part, and lays the groundwork for the concepts to be examined in Black Hole Space Ships and Concepts for Faster Than Light Travel.

  • S02E05 Black Hole Starships

    • March 19, 2016
    • YouTube

    A continuing look at possible technologies using artificial Black Holes as power sources, focusing on spaceship concepts, as well as the impact on SETI. In this video we will examine the basic concept, as well as refueling black holes, using black holes as weapons, and several related concepts.

  • S02E06 Faster Than Light: Quantum Entanglement

    • March 25, 2016
    • YouTube

    Our first installment of a new series looking at Faster Than Light, or FTL, concepts and technologies. In this episode we review the basics of Special Relativity and some misconceptions about it, then look at Quantum Entanglement.

  • S02E07 Faster Than Light: Tachyons and Time Travel

    • April 1, 2016
    • YouTube

    Our second installment of a new series looking at Faster Than Light, or FTL, concepts and technologies. In this episode we look at the Tachyon, a hypothetical superluminal particle than can travel back in time as well as looking at what theory tells us about Time Travel and Temporal Paradoxes.

  • S02E08 Megastructures: Hoopworlds

    • April 8, 2016
    • YouTube

    In the 7th episode of the Megastructures series we look at Hoop Worlds, a type of artificial planet with some surprising properties.

  • S02E09 Fermi Paradox: The Dyson Dilemma v2.0

    • April 8, 2016
    • YouTube

    A new version of the original video covering the Dyson Dilemma of the Fermi Paradox, in which we cover the apparent contradiction in the lack of numerous Dyson Spheres in the Universe and their seeming inevitable construction by growth-oriented technological civilizations.

  • S02E10 Double Planets and Rocheworlds

    • April 15, 2016
    • YouTube

    Episode 5 of the Habitable Planets Series takes a look at double planets and what sort of conditions would prevail, or need to prevail, for them to be Earth-like. As well as the Rocheworld, a special case of Double Planets where the two planets either share an atmosphere or have even begun to merge together.

  • S02E11 Megastructures: Shkadov Thrusters

    • April 22, 2016
    • YouTube

    A look at the simplest type of Dyson Sphere, the Shkadov Thruster, a device able to move entire solar systems.

  • S02E12 The Fermi Paradox Compendium

    • April 29, 2016
    • YouTube

    A new look at the Fermi Paradox detailing all the popular solutions and their strengths and weaknesses.

  • S02E13 Faster Than Light: Alcubierre Warp Drives

    • May 6, 2016
    • YouTube

    In Episode 3 we look at the concept of warp drives, a theoretical type of spaceship propulsion that warps spacetime to allow faster than light travel. We discuss the basic concept and the scientific and technological hurdles to developing it, along with clearing up many of the myths about it.

  • S02E14 Transhumanism and Immortality

    • May 13, 2016
    • YouTube

    An in-depth look at the Transhumanism movement and related concepts, with a special focus on pathways for extending the human lifespan. Topics including SENS and anti-aging research, mind uploading, Technological Singularities, and physical and mental augmentation.

  • S02E15 The Simulation Hypothesis

    • May 19, 2016
    • YouTube

    A look at the Simulation Hypothesis, or Simulation Argument, along with its implications for identity, consciousness, and the Fermi Paradox.

  • S02E16 The Doomsday Argument

    • May 27, 2016
    • YouTube

    A look at the Doomsday Argument, also known as the Carter Catastrophe, a probabilistic argument which suggests humanity may be nearing its end. We will examine how this applies to the Fermi Paradox and the Simulation Hypothesis, as well as examining the concept of the Anthropic Principle.

  • S02E17 The Anthropic Principle and Super Intelligence

    • June 10, 2016
    • YouTube

    Today we are looking at two topics, the Anthropic Principle and the idea of greater than human intelligence, generally called Super-Intelligence or SI.

  • S02E18 Megastructures: Nicoll Dyson Beams

    • June 16, 2016
    • YouTube

    Continuing our look at Dyson Spheres we examine the concept of the Nicoll-Dyson Beam, a type of advanced weapon that uses the output of an entire sun to create a laser that can strike target across the galaxy.

  • S02E19 Megastructures: Matrioshka Brains

    • June 23, 2016
    • YouTube

    In Episode 10 we explore the Matrioshka Brain, a nested Layer type of Dyson Sphere designed to turn stars in to giant computers, and conclude our look at Dyson Spheres and other types of Stellar Engines.

  • S02E20 Arcologies

    • June 30, 2016
    • YouTube

    In our first look at possible futures for Earth we examine the concept of Arcologies, self-sufficient habitats that adapt the concepts we've previously considered for space stations and off-world colonies to Earth itself. We'll examine the original concept, the more modern one of giant structures that dwarf skyscrapers, and under what circumstances such ideas can be practical.

  • S02E21 Ecumenopolises

    • July 7, 2016
    • YouTube

    In our second look at possible futures for Earth we examine the concept of Ecumenopolises, planet spanning cities homes to trillions. We'll examine concept in detail, starting with the first portrayals of it in fiction and extending on how Arcologies and other technologies we've discussed on the channel might be employed to create a Ecumenopolis and what they might be like to live in.

  • S02E22 Civilizations at the End of Time: Black Hole Farming

    • July 14, 2016
    • YouTube

    In this video we jump trillions of years into the future to examine the concept of civilizations living in a dark, post-stellar Universe, where we encounter some surprising possibilities about just how abundant and robust life might be in a seemingly dark and dead Universe.

  • S02E23 Habitable Planets: Water Worlds & Ocean Planets

    • July 21, 2016
    • YouTube

    Continuing our look at Habitable Planets we look at worlds entirely covered in water, and how they are both harder and easier for life to develop and thrive on than we might expect.

  • S02E24 Faster Than Light: Wormholes

    • July 28, 2016
    • YouTube

    In Episode 4 we look at the concept of wormholes, how they derive from General Relativity, the various different types and theories, and some under-considered uses of wormholes. We'll also discuss some myths and misunderstandings of the concept.

  • S02E25 Tabby's Star

    • August 4, 2016
    • YouTube

    A in-depth look at KIC 8462582, also known as Tabby's Star. We'll explore how this star became famous for an anomaly, what that anomaly was, and the various theories for what might be causing it.

  • S02E26 Consciousness and Identity

    • August 11, 2016
    • YouTube

    A look at how emerging concepts in science & technology could disrupt our most our understandings of identity, consciousness, and free will. This is the 5th episode of the Existential Crisis series which looks at concepts like Transhumanism, Life Extension, the Simulation Hypothesis, the Doomsday Argument, and the Anthropic Principle.

  • S02E27 Dark Matter

    • August 18, 2016
    • YouTube

    A look at Dark Matter, what it is, what it isn't, and what it might be used for.

  • S02E28 Asteroid Mining

    • August 26, 2016
    • YouTube

    This video continues our look at Colonizing Space by examining the idea of Asteroid Mining and setting up colonies on Asteroids. We explore the science as well as practical issues of engineering, economics, legality, and psychology of such distant outposts.

  • S02E29 Post Scarcity Civilizations

    • September 1, 2016
    • YouTube

    This episode examines the concept of a civilizations and economies in which very little scarcity exists and in which production of goods requires so little labor that most basic needs can be met at little or no cost.

  • S02E30 Technological Singularity

    • September 8, 2016
    • YouTube

    The concept of a Technological Singularity, an accelerated rush in processing speed improvements culminating in a super-mind, has captivated people for decades. Today we will examine this idea and look at some misconceptions about it.

  • S02E31 Self Replicating Machines

    • September 15, 2016
    • YouTube

    A look at the concept of Self-Replicating Machines, Universal Assemblers, von Neumann Probes, Grey Goo, and Berserkers. While we will discuss the basic concept and some on-Earth applications like Medical Nanotechnology our focus will be on space exploration and colonization aspects.

  • S02E32 The Spaceship Propulsion Compendium

    • September 22, 2016
    • YouTube

    An in-depth survey of the various technologies for spaceship propulsion, both from those we can expect to see in a few years and those at the edge of theoretical science. We'll break them down to basics and familiarize ourselves with the concepts. Note: I made a rather large math error about the Force per Power the EmDrive exerts at 32:10, initial tentative results for thrust are a good deal higher than I calculated compared to a flashlight.

  • S02E33 Dark Energy

    • September 29, 2016
    • YouTube

    A look at Dark Energy, explaining and simplifying the concept around it, the Cosmological Constant, the Lambda-CDM model, and Vacuum & Zero-Point Energy.

  • S02E34 Starlifting

    • October 6, 2016
    • YouTube

    Starlifting is the process of removing matter from stars, and in this episode we will look at how you would do this and why you would do this. We will see there are a lot of reasons, and that the methods are not very high tech at all.

  • S02E35 Cryptocurrency & Blockchain

    • October 13, 2016
    • YouTube

    An in-depth look at Cryptocurrency & Blockchain, what they are, how they differ from existing methods, and what the advocates and critics have to say about them.

  • S02E36 The Kardashev Scale

    • October 20, 2016
    • YouTube

    An in-depth look at the Kardashev Scale, a system of classifying advanced civilizations. We will talk about what it is, and what some of the capabilities of such civilizations would be.

  • S02E37 Bioforming and Gene Tailoring

    • October 27, 2016
    • YouTube

    A deep look at some of the truly advanced and surprising options that might become available to us as we improve our skill with genetic engineering, ranging from altering humans to adapting life to live on alien planets or to serve as machines. We will also look at methods for doing genetic engineering, such as DNA printing and CRISPR, as well as consider some of the ethical concerns associated to using this technology.

  • S02E38 Dark Flow & The Great Attractor

    • November 3, 2016
    • YouTube

    Today we're teaming up with Joe Scott to look at the Great Attractor, a mysterious and massive source of gravity obscured from our vision, and the concept of Dark Flow, movements of whole clusters of galaxies in directions with no obvious cause.

  • S02E39 The Stellar Compendium

    • November 10, 2016
    • YouTube

    This episode is an in-depth look at stars, from the common kinds and basic terminology to exotic stars, some which are entirely hypothetical. We'll look at Stars bigger than solar systems or tinier than a pinhead, and some stars that no longer exist or cannot exist till long after all other stars have died.

  • S02E40 Colonizing the Solar System: Colonizing the Inner Solar System

    • November 17, 2016
    • YouTube

    In this epic, 2-part episode, we team up with Isaac Arthur to imagine how humans will colonize the inner Solar System, becoming a true spacefaring civilization.

  • S02E41 Colonizing the Solar System: The Outer Solar System

    • November 17, 2016
    • YouTube

    This episode continues our team up with Fraser Cain to look at Colonizing the Solar System, we move from the inner solar system to the Asteroid Belt and beyond, all the way out to the Oort Cloud.

  • S02E42 Space Warfare

    • November 24, 2016
    • YouTube

    This episode focuses on the basic concepts and misconceptions of wars fought in space and examines the notions of weapons, defenses, stealth in space, and the distance involved.

  • S02E43 Life in a Space Colony: Extraterrestrial Colonies

    • December 1, 2016
    • YouTube

    This episode begins a three-part series focusing more on the specifics of colonization including the human aspect of it. We lay the groundwork by looking at colonies just in our solar system before moving off in episodes two and three to look at life on colony ships and then on interstellar colonies.

  • S02E44 Life in a Space Colony: Colony Spaceships

    • December 8, 2016
    • YouTube

    This episode is the second of a three-part series focusing more on the specifics of colonization including the human aspect of it. Having laid the groundwork last time, we now ask ourselves what the ships carrying people to new worlds would be like, and what life aboard them would be like.

  • S02E45 Life in a Space Colony: Early Interstellar Colonies

    • December 15, 2016
    • YouTube

    This episode concludes a three-part series focusing more on the specifics of colonization including the human aspect of it. Today we journey to the Tau Ceti System after a 120 year voyage to join our colonists in the early days of the colony.

  • S02E46 Fermi Paradox: Stay At Home Civilizations

    • December 22, 2016
    • YouTube

    Today we return to the Fermi Paradox to contemplate the notion of civilizations which neither expand outwards to colonize the galaxy nor go extinct, but exist as long-term, high-tech civilizations just on their own planet or solar system. To discuss the possible motives and reasoning we will look at the many arguments raised for and against space exploration.

  • S02E47 Unpredictability: Black Swans and OCPs

    • December 29, 2016
    • YouTube

    This episode ends Year 2, not with predictions for the future, but rather a discussion of concepts of Black Swan Events and Outside Context Problems, highly unpredictable events which massively impact civilization.

Season 3

  • S03E01 Stupid Aliens

    • January 5, 2017
    • YouTube

    In this episode we begin our look at possible Alien Civilizations by considering the impossible ones. Fiction has introduced a lot of misconceptions about aliens we need to clear away before we can seriously consider them and that begins by looking at some of the common ideas and removing any that rely on the concept of advanced civilization being quite stupid.

  • S03E02 First Contact

    • January 12, 2017
    • YouTube

    We continue our look at hypothetical alien civilizations by discussing the various possible circumstances in which we might first contact them or be contacted by them.

  • S03E03 Weather Control and Geoengineering

    • January 19, 2017
    • YouTube

    A look at advanced means of altering or controlling the planet's climate and geography, drawing on concepts proposed for terraforming other planets. We look at existing and proposed ideas of controlling the weather, creating artificial islands or mountain ranges, using orbital mirrors and shades, and many other concepts.

  • S03E04 Crazy Aliens

    • January 26, 2017
    • YouTube

    In this episode we continue our look at possible Alien Civilizations by attempting to peer into the alien psyche. In the absence of any actual ones to examine we will review fictional examples and try to match those up against both human behavior and what we might consider likely, unlikely, or impossible to arise from evolutionary processes.

  • S03E05 Interstellar Travel Challenges

    • February 2, 2017
    • YouTube

    This episode focuses on many of the problems with travel between stars at relativistic velocities, like collision avoidance, radiation, ship geometry, armor, and point-defense. We will also look at some of the possible engine types and discuss realistic maximum speeds they offer.

  • S03E06 Life Extension

    • February 9, 2017
    • YouTube

    In this episode we explore technological challenges and solutions for extending the human life span and contemplate some of the challenges an extended lifespan might pose for our civilization.

  • S03E07 Cryptic Aliens

    • February 16, 2017
    • YouTube

    In this episode we continue our look at possible Alien Civilizations by discussing language and communication. How could we translate their language? How would they translate ours? What modes of communication are available besides sight and sound?

  • S03E08 Interstellar Highways

    • February 23, 2017
    • YouTube

    This episode discusses the idea over using chains of relays firing immensely powerful lasers or streams of particles to move spaceships between neighboring stars at near-light velocities.

  • S03E09 Upward Bound: Getting Into Space

    • March 2, 2017
    • YouTube

    The first installment in a new series discussing alternative means of getting in space, from better rockets to massive structures like Space Elevators, Skyhooks, and Launch Loops.

  • S03E10 Upward Bound: Space Elevators

    • March 9, 2017
    • YouTube

    In this episode we examine the concept of a Space Elevator, a popular piece of developing technology designed to lift people and cargo into space at a fraction of normal launch costs. We will look at technology as well as many of the misconceptions about Space Elevators which have emerged.

  • S03E11 Quantum Computing

    • March 16, 2017
    • YouTube

    In this episode we explore Quantum Computers, from the basic theory to the potential applications, as well as many myths and misconceptions this groundbreaking technology has accumulated.

  • S03E12 Upward Bound: Skyhooks

    • March 23, 2017
    • YouTube

    In this episode we examine the Skyhooks and Rotovators, technology designed to lift grab spaceplanes or rockets at far slower speeds than normal and lift them into space at a fraction of normal launch costs.

  • S03E13 Life Support

    • March 30, 2017
    • YouTube

    Space is a hostile place, in this episode we will look at what you need to survive in it, dispels some myths about it, and get into the specifics of how much air, water, power, and other things you need and how to get them.

  • S03E14 Upward Bound: Mass Drivers

    • April 6, 2017
    • YouTube

    This episode feature Mass Drivers, Space Guns, and other means of rapidly accelerating a spaceship up to orbital speeds without a rocket. We will explore the basic concepts, the engineering issues, and the potential cost & safety advantages & disadvantages along with how these devices can be used in tandem with other systems we have looked at.

  • S03E15 Dead Aliens

    • April 13, 2017
    • YouTube

    Continuing our look at possible alien civilizations, we examine extinct alien civilizations and the possibly of finding them and exploring their ruins to learn about them. We will also contemplate the possibility of bringing them back, and the conundrums that raises.

  • S03E16 Reusable Rockets & Metallic Hydrogen

    • April 20, 2017
    • YouTube

    In this episode we'll be looking at improvements to rocket systems, with the main focus on re-usability. We will also look a bit deeper at rocketry principles, at some other improvements and alternative uses for rockets, such as oceanic launches, and discuss Metallic Hydrogen, a potential game changing fuel.

  • S03E17 Cyborgs

    • April 27, 2017
    • YouTube

    We examine the concepts of cyborgs, clarify what they are and how they differ from bionics, androids, and similar concepts. We also discuss some of the lesser known options for augmentation and explore the notion of man-machine integration.

  • S03E18 The Nuclear Option

    • May 4, 2017
    • YouTube

    While potentially dangerous, nuclear powered spacecraft offer far faster and more efficient spacecraft than traditional chemical rockets. Today we will examine the various means of using atomic power sources to propel spacecraft, both to get off Earth and to travel to other stars.

  • S03E19 Infinite Improbability Issues

    • May 11, 2017
    • YouTube

    Science Fiction loves the Many Worlds Interpretation of Quantum Mechanics, but its implication go far beyond basic Alternate Universes and histories. Today we will explore some of the mind-bending consequences of this theory.

  • S03E20 Industrializing the Moon

    • May 18, 2017
    • YouTube

    We return to the Moon to explore ways to go beyond simple Lunar Bases to a full-fledged productive colony that can help us travel to other worlds and expand our own.

  • S03E21 Psychohistory

    • May 25, 2017
    • YouTube

    look at methods for predicting the future, how plausible they are and what hurdles they face, with a focus on Isaac Asimov's concept of Psychohistory, from the classic Foundation series.

  • S03E22 Launch Loops

    • June 1, 2017
    • YouTube

    The Launch Loop is a type of space vehicle launch assist mechanism that allows us to transfer vast amounts of energy and momentum from ground based generators to a launch vehicle high in the upper atmosphere.

  • S03E23 Construction Tips from a Type 2 Engineer - Part 1

    • June 8, 2017
    • YouTube

    Fraser Cain and Isaac Arthur team up again to bring you another epic collaboration. This time, it’s a 2-part series of construction tips from an engineer from a Type 2 Civilization. In this episode, we harvest helium 3, mine the asteroids, and rearrange the Solar System.

  • S03E24 Tips from Kardashev 2 Engineers, part 2

    • June 8, 2017
    • YouTube

    Part 2 of our look at mega-engineering projects civilizations may tackle on their way to achieving Kardashev 2 status. Teaming up again with Fraser Cain & Universe Today, we look at artificial magnetospheres, mining and disassembling comets, asteroids, and even whole planets, and harvesting the Sun itself.

  • S03E25 Upward Bound: Space Towers

    • June 15, 2017
    • YouTube

    Today we look at using Space Towers, Buoyant Structures, Airships, and Space Fountains as means of launching spaceships, as well as their other applications to create enormous structures that normal materials could never permit.

  • S03E26 Fermi Paradox Great Filters: Space and Time

    • June 22, 2017
    • YouTube

    This episode begins our look at solutions to the Fermi Paradox - the question of why the Universe appears empty of intelligent life besides ourselves - by looking at some of the reasons why life may simply be very uncommon. Before we can contemplate what might be special about Earth, we first need to consider what might be special about our region of space, and even our epoch of time, or our Universe itself.

  • S03E27 Orbital Rings

    • June 29, 2017
    • YouTube

    The Orbital Ring is a type of launch-assist system that goes beyond moving small ships and crews into space and allows cheap movement of bulk cargo up to space, into orbit, and beyond.

  • S03E28 Megastructures 1.1: Dyson Spheres

    • July 6, 2017
    • YouTube

    We return to the Megastructures series to examine the the concept of a Dyson Sphere, a means of enclosing a star to gather all of it energy. We will look at myths and misconceptions about Dyson Spheres, as well as a number of additional purposes they can be put to, from allowing interstellar travel to generating black holes or running computers large enough to simulate whole Universes.

  • S03E29 Civilizations at the End of Time: Iron Stars

    • July 13, 2017
    • YouTube

    In the previous episode we saw how civilizations might not simply survive after all the stars in the Universe had died, but might indeed thrive far better during the Black Hole Era of the Universe. Today, we will go beyond even the Dark Era to examine the concepts or Iron Star Civilizations, Boltzmann Brains, Reversible Computing, and even reversing Entropy itself.

  • S03E30 Fermi Paradox Great Filters: Rare Earth

    • July 20, 2017
    • YouTube

    We continue our look at possible explanations why life may be very rare in the Universe by examining our planet itself, and looking at which of its characteristic might be important to intelligence developing and how improbable those traits are for a given planet in a given solar system.

  • S03E31 Force Fields

    • July 27, 2017
    • YouTube

    Force fields are a staple of science fiction, but usually regarded as only science fiction, not science fact. Today we'll examine the notion and see what options we might have inside known science, as well as what alternatives might achieve similar effects.

  • S03E32 Hidden Aliens

    • August 3, 2017
    • YouTube

    It is often suggested that the reason we don't hear from alien civilizations is that they are in hiding. In this episode, we will explore that notion, and examine why a civilization might hide and how they would go about doing it.

  • S03E33 Quiet Revolution: Technologies that will change the World

    • August 10, 2017
    • YouTube

    Many technologies are greaty anticipated and predicted, and promise to change our lives. Today we will be looking at some that get less fanfare, but hold the promise to change our lives in profound ways.

  • S03E34 Outward Bound: Colonizing Mars

    • August 17, 2017
    • YouTube

    We begin the new Outward Bound series by discussing the Colonization of Mars, and survey all the colonizing and terraforming options from the early settlement days to the far future and a Green Mars. We will also look at alternatives to terraforming which might make more sense for Mars, like bioforming the people to the environment, rather than terraforming it to our environment.

  • S03E35 Fermi Paradox Great Filters: Rare Intelligence

    • August 24, 2017
    • YouTube

    We conclude our look at possible explanations why life may be very rare in the Universe by looking at the evolutionary pathway to intelligence and the hurdles between life starting on a planet and migrating off of it.

  • S03E36 Interplanetary Warfare

    • August 31, 2017
    • YouTube

    Following on our look at Space Warfare concepts, we look at popular ideas from science and science fiction for war between planets, or inside a fully colonized solar system or Dyson Swarm.

  • S03E37 Outward Bound: Colonizing Venus

    • September 7, 2017
    • YouTube

    We continue our look at colonizing the solar system by visiting Venus, and exploring both the options for vast floating habitats in the upper atmosphere as well as full terraforming of the planet.

  • S03E38 Megastructures: Ringworlds

    • September 14, 2017
    • YouTube

    Ringworlds are a type of megastructure that engulf an entire star, first popularized in Larry Niven's classic novel Ringworld. These constructs a million times larger than Earth have captivated minds for nearly half a century but been considered impossible to build under known science. Today, we will attempt to show otherwise.

  • S03E39 Smug Aliens

    • September 21, 2017
    • YouTube

    We continue our look at hypothetical Alien Civilizations by examining concepts such as Zoo Hypothesis - that aliens may be keeping us secluded from the rest of the galaxy - and the motivation for non-interference, such as the Star Trek Prime Directive.

  • S03E40 Uplifting Animal & Aliens, Part 1 of 2

    • September 28, 2017
    • YouTube

    The concept of enhancing and augmenting animal minds & bodies to be able to use and understand human technology, known as Uplifting, has long fascinated us. Today in this two-part collaboration with John Michael Godier, we will explore this concept as well as the possibility of using such technology with alien races, the polar opposite of the classic Star Trek Prime Directive.

  • S03E41 Uplifting: Animals and Aliens Part 2 of 2

    • September 28, 2017
    • YouTube

    Part II of a collaboration with Isaac Arthur on the subject of uplifting, the concept of increasing an animal or alien species' intelligence. Further, we explore the concept of Downshifting, the idea of making deliberately making something less intelligent.

  • S03E42 Androids

    • October 5, 2017
    • YouTube

    Androids, machines that look and act human, are rapidly leaving the realms of science fiction and entering science fact. In this episode we explore their uses, dangers, ethical dilemmas, and more.

  • S03E43 Outward Bound: Colonizing Titan

    • October 12, 2017
    • YouTube

    We continue our look at colonizing the solar system by visiting Saturn's moon Titan. We will examine the options for less classic colonization by exploring alternatives to manned colonization and classic terraforming.

  • S03E44 Mind Augmentation

    • October 19, 2017
    • YouTube

    A look at methods and concerns for augmenting the human mind. Today we will be looking at Mind Augmentation, the basic concepts, methods, ethical concerns, and possible pitfalls entailed.

  • S03E45 Digital Death

    • October 26, 2017
    • YouTube

    It is often thought that if we cure aging or find out how to upload a human mind that humans will be immortal. Today we will examine that notion and see how well it holds up against astronomical time lines.

  • S03E46 Outward Bound: Interplanetary Trade

    • November 2, 2017
    • YouTube

    Today we discuss the concept of trade throughout a colonized solar system, and ask how viable it is and what challenged it faces. While Interplanetary trade faces many challenges, Interstellar Trade faces even more, this episode will seek to examine in detail what can be traded between worlds, what probably can't, and what technologies might impact that.

  • S03E47 The Cosmic Ocean

    • November 9, 2017
    • YouTube

    In memory of Carl Sagan, this episode will review many of the topics he covered during his career and see what what we've learned about the Cosmos and its inhabitants since then.

  • S03E48 Mega Earths

    • November 16, 2017
    • YouTube

    A look at creating artificial planets, ones vastly bigger than Earth. We return to the Megastructures series to discuss various ways of creating artificial planets, the special issues with making an Earth-like planet much larger or smaller than Earth, and the maximum size they can be, potentially larger than entire solar systems.

  • S03E49 Outward Bound: Colonizing Jupiter

    • November 23, 2017
    • YouTube

    Jupiter and its moon are a rarely considered prospect for colonization, but potentially the ripest opportunity for it in the solar system. In this episode of the Outward Bound series we will examine the options for colonizing each of Jupiter's primary moons and even discuss ways to colonize the giant planet itself.

  • S03E50 Machine Rebellion

    • November 30, 2017
    • YouTube

    The possibility of Artificial Intelligence turning on humanity has been a concern for as long as we've had computers. Today we will look at some of those fears and see which ones might be valid and which might not be cause for alarm.

  • S03E51 Hive Minds

    • December 7, 2017
    • YouTube

    The concept of linking many minds together to act in concert, or even fuse into a new singular entity, has been popular in science fiction for decades. Today we will explore the idea and Networked Intelligence in general, to see how realistic it is, and what benefits or concerns might arise from it.

  • S03E52 Outward Bound: Colonizing the Oort Cloud

    • December 14, 2017
    • YouTube

    Could the cold outer reaches of the solar system ever be called home? Far beyond even Pluto and the Kuiper Belt is a vast and mostly empty region of space that we theorize may contain trillions of comets and other icy bodies. Frozen and barren though they would be, we will consider how they might one day become thriving and comfortable habitats for us.

  • S03E53 Interstellar Empires

    • December 21, 2017
    • YouTube

    The concept of Interstellar Empires has fascinated us for as long as we've know those stars in the night sky were other solar systems, and it's become a staple of science fiction. But rarely do we consider how realistic such galaxy-spanning confederations are, and what special challenges they'd face.

  • S03E54 Intergalactic Colonization

    • December 28, 2017
    • YouTube

    We often discuss the notion of settling the galaxy but do we need to stop there? This episode will examine the additional difficulties with traveling between galaxies and ask just how far we might be able to journey even without faster than light travel.

Season 4

  • S04E01 Outward Bound: Colonizing the Sun

    • January 4, 2018
    • YouTube

    We contemplate colonizing planets, but what about the stars themselves? Containing virtually all the mass and resources of the solar system, the Sun, the Sun is the ultimate asset for a growing interplanetary civilization. While typically assumed too hot to touch and so out of our reach, we will challenge that notion today.

  • S04E02 Evacuating Earth

    • January 11, 2018
    • YouTube

    The End of the World is nigh... how do you escape? This episode will look at many of the potential ways the world might be destroyed, from supernova to asteroid strike, as well as looking at how we might survive such disasters and go about saving civilization.

  • S04E03 The Compendium of Doom

    • January 18, 2018
    • YouTube

    A discussion of various theories for the End of the Universe. How the Universe began and why is a question that's obsessed humanity for at least as long as civilization has existed, at the same time, how it will end has equally fascinated us. Today we are joined by Astrophysicist Paul Sutter for a two-part episode looking at the science and history of how the Universe came to be and may end.

  • S04E04 De-Extinction: Resurrecting the Past

    • January 25, 2018
    • YouTube

    Ever since we started finding fossils of long extinct species we've dreamed of getting to meet them, either by finding some secluded group of survivors, using a time machine, or resurrecting them. As our knowledge of genetics grows, this last option is fast approaching as a possible reality and raises many additional concerns about the technical and ethical challenges, not least of which is where to put them, with their former environments now used by people or other critters. We will examine these challenges today.

  • S04E05 Mars: From Science Fiction to Science Fact

    • February 1, 2018
    • YouTube

    We explore the history and future of missions to Mars. For years following the Moon landings it seemed liked Mars would be our next step and sooner than later, but the costs and risks discouraged interest for around a decade after that. We pick up from part 1 when renewed interest arose and examine many of the more recent plans and what options they give us for manned missions to the Red Planet in the next decade.

  • S04E06 Spaceports

    • February 8, 2018
    • YouTube

    We return to the Upward Bound Series to look at spaceports, giant structures dwarfing the modern International Space Station, with a focus on the Gateway Spaceport design.

  • S04E07 Fermi Paradox: Sleeping Giants

    • February 15, 2018
    • YouTube

    The idea that alien civilizations may exist but be hiding or asleep is a popular explanation for the Fermi Paradox, the apparent contradiction between the immensity of the Universe and the seeming absence of civilizations in it. Today we exam the concept that civilization may hibernate and what their motives for doing so would be.

  • S04E08 Outward Bound: Colonizing Alpha Centauri

    • February 22, 2018
    • YouTube

    A journey out to the stars to colonize Alpha Centauri. We've looked at colonizing our own solar system, from Mars to Venus, and all the way inward to the Sun itself and out to the dark edges of the Oort Cloud. In this episode we conclude the Outward Bound Series by heading to our nearest neighboring star system, Alpha Centauri, and look at the trials and tribulations of colonizing binary star systems and red dwarves.

  • S04E09 Orbital Infrastructure

    • March 1, 2018
    • YouTube

    To explore space and expand beyond Earth we will need a robust orbital infrastructure to serve as our beachhead. Today we will explore the necessary components for that, how we will go about creating them, and threats to them like Kessler Syndrome, a potential cascade destruction of all our space-based assets.

  • S04E10 Interstellar Warfare

    • March 8, 2018
    • YouTube

    A look at the future of warfare in the void between the stars. Today we will examine the concepts from science fiction of how such conflicts might occur and see how realistic they are under known science.

  • S04E11 Civilizations at the End of Time: Dying Earth

    • March 15, 2018
    • YouTube

  • S04E12 Teleportation

    • March 22, 2018
    • YouTube

  • S04E13 Advanced Metamaterials

    • March 29, 2018
    • YouTube

  • S04E14 Portable Power

    • April 5, 2018
    • YouTube

  • S04E15 Surviving in the Expanse of Space

    • April 12, 2018
    • YouTube

  • S04E16 O'Neill Cylinders

    • April 19, 2018
    • YouTube

  • S04E17 Alien Beacons

    • April 26, 2018
    • YouTube

  • S04E18 Post Scarcity Civilizations & Privacy

    • May 3, 2018
    • YouTube

    This episode begins an in-depth look at Post-Scarcity Civilizations, seeming Utopias where virtually anything is available to its citizens at the snap of their fingers. One of the exceptions to that may be privacy, which might be inherently impossible in such a society, and we will explore that challenge as we begin our series on such civilizations..

  • S04E19 Megatelescopes

    • May 10, 2018
    • YouTube

    To see deeper into space, we will need much bigger telescopes. Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ As astronomy seeks to find and study distant planets and peer further and more accurately into space and time, the limitations of ground based telescopes, especially optical telescopes, represents our largest barrier. Today we will examine what those limitations are, and ways to make vastly more enormous telescopes and arrays.

  • S04E20 Planetary Assaults & Invasions

    • May 17, 2018
    • YouTube

  • S04E21 Post Scarcity Civilizations: Reality & Simulation

    • May 24, 2018
    • YouTube

  • S04E22 Ancient Aliens

    • May 31, 2018
    • YouTube

    The possibility that ancient civilizations might have encountered or even been influenced by extraterrestrials has fascinated us for as long as we knew there were distant suns they might visit from. Today we will examine the evidence and consider the numerous scenarios form the perspective of the Fermi Paradox, to see how reasonable the Ancient Aliens hypothesis is, and ask if the evidence of UFOs visiting us in the past is credible.

  • S04E23 Mind Uploading

    • June 7, 2018
    • YouTube

    The ability to be able to copy or upload the mind has been discussed much in science fiction, and increasingly in science in recent years. Today we will examine many additional uses of Mind Uploading, along with how it works and some of its implications for concepts like Consciousness, Identity, and Individuality. We will also explore how these themes appear in Dennis E. Taylor's newest novel, The Singularity Trap, our Book of the Month.

  • S04E24 Outward Bound: Colonizing Mercury

    • June 14, 2018
    • YouTube

    Today we take a trip inward, to explore Sun-Scorched Mercury. Mercury is the nearest planet to the Sun, a seeming airless wasteland little discussed in conversations about colonizing our solar system. Today we will challenge that, and show that Mercury may be one of the most promising places for humanity to make new homes on.

  • S04E25 Cyclic Apocalypses

    • June 21, 2018
    • YouTube

    A look at the possibility of future civilizations rising and falling. It's long been observed that empires tend to rise and fall in a seeming cycle, never identical but sharing many similarities. Today we will examine the idea that this may be the reason that we have encountered no advanced civilizations in our own galaxy, and that the solution the Fermi Paradox, as to why we have seen no alien civilizations, may be that they are caught in a perpetual loop. Unable or unwilling to use technology which might allow them to travel the cosmos. We will also consider if such a loop may await us, or that we are already in it.

  • S04E26 Purpose & Existence

    • June 28, 2018
    • YouTube

    Try out Ecosia and support reforestation: https://ecosia.co/isaacarthur Technology may one day grant us a Utopia in which virtually all tasks are performed by robots and artificial intelligence. In such a post-scarcity civilization, people may have difficulty finding a purpose to existence. Today we will explore how this may come about, what the consequences of this existential threat might be, and what purposes people may find for themselves in such a future. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: http://signil.com/sfia Social Media: Facebook Group: https://www.facebook.com/groups/15839... Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/v5UKTsz

  • S04E27 Outward Bound: Colonizing Ceres

    • July 5, 2018
    • YouTube

    Ceres, a dwarf planet amid the Asteroid Belt, hold the potential to be the hub of a vast mining and manufacturing network in the Belt, as well as potentially growing the food to support future colonists. Today we'll look at colonizing Ceres and asteroid mining, faming in space, and a potential distant future of a developed asteroid belt.

  • S04E28 Generation Ships

    • July 12, 2018
    • YouTube

    Today we will begin our look at the spaceships we might use for colonizing interstellar space in the future. In order to cover the vast distances between even the nearest stars in our galaxy within the boundaries of known physics, we need vessels able to voyage at high speeds for very long periods of time while carrying everything they need to colonize another solar system, a concept typically known as a space ark or generation ship. We will explore the challenges and options for such a vessel, as well as some alternative approaches to the problem.

  • S04E29 Galactic Humanity & the Fermi Paradox, Part 1

    • July 19, 2018
    • YouTube

    For today's 2-part episode we team again with John Michael Godier to discuss the future of humanity should we head out to colonize the galaxy and find it empty, and how we might end up encountering aliens even then.

  • S04E30 Galactic Humanity and the Fermi Paradox Part II

    • YouTube

    Part II of a collaboration with Isaac Arthur on the possibilities of a galactic human future and what that might entail.

  • S04E31 Upward Bound: Power Satellites

    • July 26, 2018
    • YouTube

    Beaming energy down from satellites in orbit to replace the production of electricity on Earth may solve many of our problems, and avoid a potential economic or ecological crisis such as energy bottlenecks or global warming. Today we will explore how wireless microwave transmission of energy down to rectennas may not only be possible, but could be massively profitable in the near future and spur our exploration and colonization of space.

  • S04E32 Exodus Fleet

    • August 2, 2018
    • YouTube

    In order to colonize the galaxy, we are going to have to spend huge times on board equally huge spaceships. To move thousands of people, and our ecosystem, to distant planets, will require not only giant ark-like starships, but entire fleets of them. Today we will examine how we could do this even if physics never offers us any superior methods in the future for covering the void of interstellar space faster.

  • S04E33 5 Ways The World Could End - And How We Can Survive It (Feat. Isaac Arthur) | Answers With Joe

    • August 9, 2018
    • YouTube

    Today, we're discussing 5 plausible ways that the world could end, and I'm thrilled to be doing this as a 2-part collaboration with the one and only Isaac Arthur. Check out his video here:

  • S04E34 5 Ways The World Could End - And How We Can Survive It, with Joe Scott

    • August 9, 2018
    • YouTube

    Today we team up with Joe Scott to discuss 5 catastrophes that might threaten humanity in the future, and what we can do to prevent or mitigate them. Here in part 2, we will look at ways of dealing with those threat, which will include artificial intelligence, global warming & climate change, asteroids & comets, gamma ray bursts, and the eventual death of the Sun.

  • S04E35 Jobs of the Future

    • August 16, 2018
    • YouTube

    Since the advent of technology, there have been concerns about it replacing jobs and leaving people without an income. Technological disruption has often eliminated entire industries. However, new fields of employment have always arisen to replace those, typically focusing more on training and skills, as machines have no minds and little flexibility. While artificial intelligence may one day change that, today we will examine what sort of jobs might be available to people in the future.

  • S04E36 Upward Bound: Space Farming

    • August 23, 2018
    • YouTube

    In order to do serious exploration and colonization of space, we will need a source of food beyond Earth. But can we go beyond simply small hydroponic gardens to entire vast space farms in orbit of our planet, and could those farming on satellites and space stations eventually replace earth-based agriculture as our main food source at home?

  • S04E37 Parasitic Aliens

    • August 30, 2018
    • YouTube

    Alien puppeteers arriving on UFOs, body snatchers, and mimics are a staple of science fiction, but are they realistic? Today we'll examine these concepts and see if they might be possible under known science, or what similar scenarios extraterrestrial evolution or technology might be produce.

  • S04E38 Exporting Earth

    • September 6, 2018
    • YouTube

    In order to terraform new planets, we will need to be able transport entire ecologies & ecosystems through interstellar space in the future. Today we will examine how we could build and maintain such environments inside vast arks, generations ships able to colonize our galaxy, and the challenges these starships will face maintaining not just stores of DNA and genetic material but living organisms which depend heavily on other members of their species and other species to survive and thrive, not least of which is human ourselves.

  • S04E39 Attack of the Drones

    • September 13, 2018
    • YouTube

    Drones are becoming more common for military, commercial, and recreational purposes, today we will explore how these will impact us in the near future and far, for peace and warfare, on Earth and in the void of space. We will also examining the fundamental differences in the problems and challenges drones represent compared to more mentally sophisticated artificial intelligences or robots.

  • S04E40 Outward Bound: Colonizing Neptune

    • September 20, 2018
    • YouTube

    The Icy Giants, Neptune and Uranus, are often overlooked for as candidates for colonizing our solar system. Even when noted, the focus tends to be on their larger moons like Triton. Today we will challenge that notion by looking at way we might place a colony on the planet itself, and how Orbital Rings and Chandelier Cities might let us colonize any gas giant. We will also look at how helium-3, a core ingredient of aneutronic fusion abundant on Neptune, might serve as the fuel of future starships, and the physics behind some other starship drives future science might give us access to, such as laser propulsion.

  • S04E41 Brainwashing & Mind Control

    • September 27, 2018
    • YouTube

    We often worry about the possibility of a civilization developing methods of brainwashing to indoctrinate its population and turning into a totalitarian dictatorship. We will examine both existing and possible future methods and technologies for mind control, such as neuro-hacking and genetic programming, as well as the possible defenses against such brainwashing or conditioning and implications it has for civilization.

  • S04E42 SFIA Monthly Livestream: September 30, 2018

    • September 30, 2018
    • YouTube

    Our first end-of-the-month livestream Q&A session, with hopefully minimal technical glitches. Join us 2pm EST, Sunday, Sep 30, and get you questions about the channel and episodes on chat to be answered!

  • S04E43 Seasteading & Artificial Islands

    • October 4, 2018
    • YouTube

    Our seas and oceans have long been central to human civilization, while at the same time we built dikes and islands to reclaim land. As technology improves, we may see even more ambitious efforts in the future. In the episode we will explore the options, both for ways we may extend our civilization to the sea and the motives of doing so. We will also look at seasteads and seasteading, artificial islands built in international waters with the intent of being new, sovereign nations.

  • S04E44 The Million Year Ark

    • October 11, 2018
    • YouTube

    As we continue our look at Generation Ships, vast vessels designed to carry many thousands of colonists to distant and alien worlds centuries away, we must ask just how far and how long such ships can be made to last? Can space ships be made that will endure even longer voyages of thousands or even millions of years in the void of interstellar or even intergalactic space? Will ships, and their crews, fall apart or turn into Cargo Cults who no longer remember how their technology functions or what their mission was?

  • S04E45 Colonizing the Oceans

    • October 18, 2018
    • YouTube

    Our seas and oceans have always been central to our civilization, but only the thin layer at the top. In many ways the ocean depths remain more of a mystery to us than distant worlds. And yet, they may be of great value to us as future homes for humanity.

  • S04E46 Upward Bound: The Environments of Space Habitats

    • October 25, 2018
    • YouTube

    A look at environments and ecology on truly massive space stations. As we expand in space and build ever large space stations, true space habitats, we will need to incorporate ecosystems into them. However, such space habitats will have their own weather and cycles unlike those of Earth, and we will need to adapt to those unique conditions, which will vary by size and type. Today we will look at everything from smaller rotating habitats like Kaplana One and O'Neill Cylinders to vast structures such as Ringworlds, Supramundane Planets, Mega-Earths, and see the unique challenges each of them will offer us in the future.

  • S04E47 SFIA Monthly Livestream: October 28, 2018

    • October 28, 2018
    • YouTube

    Our second end-of-the-month livestream Q&A session. Join us 2pm EST, Sunday, Oct 28, and get your questions about the channel and episodes on chat to be answered!

  • S04E48 The Science of Aging

    • November 1, 2018
    • YouTube

    Lifespans have been slowing increasing as medical technology improves, but could they extended massively or even indefinitely? We will explore the science of aging and Strategies for Engineered Negligible Senescence, SENS, the field looking at how to improve geriatric medicine to extend our lives and possibly even makes us biologically immortal.

  • S04E49 Reclaiming the Deserts

    • November 8, 2018
    • YouTube

    Our deserts have been slowly expanding, consuming arable land and neighboring ecosystems. Can we push them back, or even turn them into lush oases and fertile farmland? We will investigate the available options, and consequences, with both modern technology and those which may emerge in the future.

  • S04E50 Fermi Paradox: Into the Void

    • November 12, 2018
    • YouTube

    The Fermi Paradox asks us where all the alien civilizations are? Today we will ask if the might be hiding in the Voids, from those between the stars to the massive Supervoids like the Boötes Void. Could they be home to Extraterrestrial Empires so large they dwarf even Kardashev-3 Civilizations?

  • S04E51 Battle for the Moon

    • November 15, 2018
    • YouTube

    A Moon Base may be built within a generation, but long term colonization will take many more. As more people travel and immigrate their, establishing more lunar colonies, tension between them and Earth could lead to conflicts and possibly even warfare.

  • S04E52 Sleeper Ships

    • November 22, 2018
    • YouTube

    To journey across the stars requires voyages of centuries or more, ensuring the crew will be long dead by the time they arrive. If you want your crew available to colonize new worlds after their interstellar voyage, you either have to extend their lives, train their descendants, or freeze them till they arrive. We will examine the third option day, freezing people with cryonics, using hibernation, or suspended animation, or some other form of stasis the future might offer.

  • S04E53 Megastructures: Flat Earths

    • November 29, 2018
    • YouTube

    Our planet is so enormous that it can often appear flat to those living on it, as time went on and we determined it was a sphere, many still chose to assume it was a flat disc. While this notion is outdated, it is possible to construct an artificial planet as a discworld, and such worldbuilding shapes may have some advantages over a sphere. In this episode we will examine a number of Flat Earth models and some variations on the theme, and see what advantages and disadvantages they have, along with the challenges in constructing them

  • S04E54 SFIA Monthly Livestream: November 30, 2018

    • November 30, 2018
    • YouTube

    Our third end-of-the-month livestream Q&A session. Join us 7pm EST, Friday, Nov 20, and get your questions about the channel and episodes on chat to be answered!

  • S04E55 Kickstarting Space Industry

    • December 6, 2018
    • YouTube

    So often expanding into space can seem like a Catch-22, where every proposed idea for development can only be practical if space is already developed. Today we'll take a look at some potential options for pushing forward our orbital infrastructure such as asteroid mining or power satellites, and take a look at what other technologies and industries might start the avalanche to our future in space and on other planets.

  • S04E56 Colonizing the Arctic

    • December 13, 2018
    • YouTube

    Humanity has long had outposts in the barren tundra lands of the arctic, but only in recent times have we visited the poles or the entire continent of Antarctica. In this episode we will explore how me use technology in the future to make cold permafrost into verdant farmland through greenhouses, solar mirrors, geothermal, or other techniques, as well as how we might follow a different path, and adapt our civilization to prosper among perpetual winter and ice.

  • S04E57 Earth 2050: Predictions for the Next Generation

    • December 17, 2018
    • YouTube

    To ring in the New Year, we're joining up with Kaspersky Lab's Earth 2050 project to make some predictions about how our world will change over the next generation as we make improvements in technologies on medicine, data storage and manipulation, and robots & AI.

  • S04E58 The Santa Claus Machine

    • December 20, 2018
    • YouTube

    Revolutionary improvements to automation and production may one day create machines able to produce almost anything, quickly and cheaply, and far faster and more varied than modern 3D Printers. Such devices are sometimes known as Santa Claus Machines, Cornucopia Devices, or Clanking Del-Replicators, and today we will examine how likely such technology is, how far off in the future they might be, and what impact they would have on society.

  • S04E59 Seeding the Stars

    • December 27, 2018
    • YouTube

    The galaxy is a vast place with billions of potential new worlds for humanity to colonize, but interstellar space is so enormous that reaching even the nearest stars and planets by spaceship would take decades at best, and maybe many centuries. Even on arrival terraforming those barren planets would take just as long. Two options for overcoming the immensity of space and time are the Seed Ship and the Data Ship, automated vessels able to colonize the worlds for us. We will examine those today, their advantages, limitations, and misconceptions, and variations of them we might use to seed the stars.

  • S04E60 Isaac Asimov's Predictions for 2019

    • December 30, 2018
    • YouTube

    35 years ago, Science Fiction's Grandmaster, the late Isaac Asimov, made some predictions for 2019. As we head into the New Year, we'll take a look at those predictions and see what he got right, what he got wrong, and what it tells us about trying to predict our own future, 35 years from now.

Season 5

  • S05E01 The Fermi Paradox & Virtual Worlds: Colonizing Inner Space

    • January 3, 2019
    • YouTube

    Many believe humanity's future lies among the stars, colonizing distant planets around alien suns, or perhaps building artificial worlds, space habitats, and megastructures. But what if instead of traveling to worlds far away in outer space we create virtual worlds to live in instead, colonizing inner space? We will explore this possibility of simulated universes and what it might mean for humanity, and also ask if this might be a solution to the Fermi Paradox, the strange absence of other life in our own universe.

  • S05E02 Making Suns

    • January 10, 2019
    • YouTube

    Without the Sun our world would be a frozen wasteland, and for this reason any efforts to colonize the galaxy must focus on huddling in the tiny oases of warmth around stars, separated from each other by enormous gulfs of interstellar space. But what if we could make our own stars at the places of our choosing? And can we merely mimic nature or create stars unlike anything which nature has formed?

  • S05E03 Subterranean Civilizations

    • January 17, 2019
    • YouTube

    Historically humanity has often taken shelter in caves or underground, and it is often thought we might do so again, on other worlds, in event of disasters, or simply because we run out of room on the ground above. In this episode we'll explore the concept of building underground, from simply subways and basements to advanced bunkers or entire cities beneath the Earth.

  • S05E04 SFIA Monthly Livestream: January 20, 2019

    • January 20, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, January 20, and get your questions about the channel and episodes on chat to be answered

  • S05E05 Space Prison Colonies

    • January 24, 2019
    • YouTube

    Many a land was settled by exiles and prisoners, and many a science fiction story contemplates that we may use such methods when colonize new worlds. But are such methods viable? and what methods might we use in the future for dealing with criminals?

  • S05E06 The Fermi Paradox: Dark Forest Theory

    • January 27, 2019
    • YouTube

    The Dark Forest Theory is a proposed solution to the Fermi Paradox from Cixin Liu which suggests all alien civilizations remain intentionally quiet, hiding from SETI efforts and possible hostile civilizations. It also argues they may attack any civilization which does not remain silent, like us.

  • S05E07 The Fermi Paradox & Panspermia

    • January 31, 2019
    • YouTube

    Our current theory of evolution holds that all life on Earth originated from a single, simple life form billions of years ago. But what if that life did not originate on Earth? In this episode we'll explore the theory of Panspermia, that origin of life might be extraterrestrial in origin, and that the abiogenesis of that origin life form we descend from might have descended from the sky in a comet or some other alien source. We will explore the impact this concept would have on the Fermi Paradox if true.

  • S05E08 Galactic Gardeners

    • February 7, 2019
    • YouTube

    The galaxy is an immense place, with billions of solar systems to colonize, and interstellar voyages to even nearby stars can take centuries. In order to explore and settle those new worlds, we may wish to take advantage of a type of generation ship that stops at planet after planet, colonizing each in turn, and entire colonial fleets that grow as they venture outward from Earth, creating new spaceships as often as terraforming new worlds.

  • S05E09 Happily Ever After

    • February 14, 2019
    • YouTube

    To celebrate Valentine's Day, we'll take a look at relationships in the future, both the romantic and platonic friendships. We'll see what options and challenges might lay in store as we have to tackle the rising effect of social media and online dating, as well as more advanced technologies like virtual reality, artificial intelligence, cloning, and life extension.

  • S05E10 Observing the Cosmos (with Fraser Cain)

    • February 17, 2019
    • YouTube

    Today we're joined by Fraser Cain of Universe Today to discuss the future of astronomy, how you can get started in it as a hobby, and a wide-range of other topics.

  • S05E11 Cloud Cities

    • February 21, 2019
    • YouTube

    Humanity has long wished to dwell among the clouds, today we'll look at what options we may have in the future for floating a city or home high in the sky.

  • S05E12 SFIA Monthly Livestream: February 24, 2019

    • February 24, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 5pm EST, Sunday, February 22, 2019, and get your questions about the channel and episodes on chat to be answered!

  • S05E13 Secret Aliens

    • February 28, 2019
    • YouTube

    The possibility that aliens might be regularly visiting Earth is one of the most popular Fermi Paradox solutions. In this episode we will look at UFOs and flying saucers theories and arguments, as well as examining the logic and possible motives of such extraterrestrial visitors.

  • S05E14 Hitchhiking the Galaxy

    • March 7, 2019
    • YouTube

    The Galaxy is an enormous place, and moving from your planet to worlds in a different solar system over vast interstellar distances will be no easy voyage. Today we'll consider how someone would go about hitchhiking around on spaceships, as a tribute to Sci-fi's master of humor, Douglas Adams.

  • S05E15 The Fermi Paradox & the Aurora Effect

    • March 10, 2019
    • YouTube

    A new paper has come out discussing how the Fermi Paradox might be explained by the rigors of traveling space for interstellar colonization, causing settlements to be rare and and possibly not long-lived. We'll look at this model for spreading humanity out across the galaxy and see what insights or flaws it might have.

  • S05E16 Clarketech: Technologies Indistinguishable from Magic

    • March 14, 2019
    • YouTube

    Science Fiction often presents us technologies that go far beyond the realms of known science, but many of these, such as force fields, inertial dampeners, anti-gravity, or faster than light travel might be possible if our future knowledge of physics holds some surprises. Today we will look at many technologies that are currently fanciful but may not be ruled out, what we call Clarketech, and consider what their implications would be if we could get them working.

  • S05E17 Civilizations at the End of Time: Dying Stars

    • March 21, 2019
    • YouTube

    One of the biggest reasons for colonizing other worlds is to ensure we don't die with our own sun, but even those alien suns we might travel to will die one day. And yet, our image of stars living than erupting spectacular as a red giant or supernova, present a somewhat false impression, as those stellar remnants often last far longer than the stars which bore them. Could civilizations survive around these dead stars? Could they even outlast the End of the Universe, as the last stars fade away?

  • S05E18 Planet Ships

    • March 28, 2019
    • YouTube

    Earth has often been compared to a spaceship, one that's successfully orbited our star and the galaxy many times over billions of years. So what about moving our planet or even converting it or another world into a spaceship? Can we use entire planets to cross the intergalactic void to settle planets in distant galaxies or superclusters? And what sort of engine and drive could move a whole planet?

  • S05E19 SFIA Monthly Livestream: March 31, 2019

    • March 31, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, March 31, 2019, and get your questions about the channel and episodes on chat to be answered!

  • S05E20 Techno-Primitivism

    • April 4, 2019
    • YouTube

    Fears about technology and it's impact on our civilization, or on individuals even when new tech is net benefit, are often shown to us in fiction as giving rise to technophobic cultures that abandon science. Today we'll take a look at such concerns and if they might be common or rare, rogue examples. Or if, counter-intuitively, they benefit us in settling the galaxy in the future.

  • S05E21 Clarketech: Anti-Gravity

    • April 7, 2019
    • YouTube

    Perhaps one of the most common technologies seen in science fiction is anti-gravity and gravity manipulation. Today we'll examine if there's an scientific pathways in physics to permit such technology, and what sort of amazing options it might offer if developed in the future.

  • S05E22 Future Pets

    • April 11, 2019
    • YouTube

    To celebrate International Pet Day, we'll take a look at what the future might have in store for our furry friends, and what sorts of new pet might emerge as technology improves.

  • S05E23 Giant Robots & Power Suits

    • April 18, 2019
    • YouTube

    Giant Robots, or Mecha, in films and comic books fascinate audiences, but are usually considered impractical even with improved technology in the future. Today we'll look at them and concepts like power armor and exoskeletons and see if such suits might have a practical role in warfare or uses other than comba

  • S05E24 Matrioshka Worlds

    • April 25, 2019
    • YouTube

    The galaxy contains countless billions of planets we might colonize, and we may build far more living area as space station habitats and megastructures, but Earth will always be unique and living here prized. Today we will see what we can do make Earth larger, by adding many layers of terrain in concentric spheres around us.

  • S05E25 Post-Apocalyptic Civilizations

    • April 27, 2019
    • YouTube

    The End of the World is a popular topic in science fiction and a source of serious worry for modern civilizations. If Doomsday comes, what can a Prepper do to survive and what would those civilizations look like? How long would recovery take and what technologies would remain? Just how grim is such a possible future?

  • S05E26 SFIA Monthly Livestream: April 28, 2019

    • May 26, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, April 28, 2019, and get your questions about the channel and episodes on chat to be answered!

  • S05E27 Black Hole Ships

    • May 2, 2019
    • YouTube

    Black Holes are often considered the greatest dangers to spaceships in science fiction, but they may turn out to be the perfect power source for future spaceships.

  • S05E28 Sky Platforms

    • May 9, 2019
    • YouTube

    The option of using floating platforms, balloons, or cargo air planes to launch rockets into space and save fuel is often discussed but rarely employed. Today we'll look at stratostations, rockoons, and other suggested methods for getting into space using these methods.

  • S05E29 Fleet of Stars

    • May 16, 2019
    • YouTube

  • S05E30 Colonizing Black Holes

    • May 23, 2019
    • YouTube

  • S05E31 SFIA Monthly Livestream: May 26, 2019

    • May 26, 2019
    • YouTube

  • S05E32 Spaceplanes

    • May 30, 2019
    • YouTube

  • S05E33 Colonizing Pluto

    • June 6, 2019
    • YouTube

  • S05E34 Weaponizing Black Holes

    • June 13, 2019
    • YouTube

  • S05E35 Superpowers

    • June 20, 2019
    • YouTube

  • S05E36 Beam Powered Spaceships

    • June 27, 2019
    • YouTube

  • S05E37 SFIA Monthly Livestream: June 30, 2019

    • June 30, 2019
    • YouTube

  • S05E38 Synthetic Meat

    • July 4, 2019
    • YouTube

  • S05E39 Space Tourism

    • July 11, 2019
    • YouTube

  • S05E40 Void Ecology

    • July 14, 2019
    • YouTube

  • S05E41 Space Whales & Bioships

    • July 18, 2019
    • YouTube

  • S05E42 Boltzman Brains & the Anthropic Principle

    • July 21, 2019
    • YouTube

  • S05E43 Invasive Aliens

    • July 25, 2019
    • YouTube

  • S05E44 SFIA Monthly Livestream: July 28, 2019

    • July 28, 2019
    • YouTube

  • S05E45 Threats to Interplanetary & Interstellar Civilizations

    • August 1, 2019
    • YouTube

    Natural disasters can topple civilizations, even in modern times, but with more and more technology civilizations become more robust and capable of predicting future calamities and preventing such ruin. So what other threats face spacefaring civilizations, both at the interplanetary and interstellar scale?

  • S05E46 Fusion: Powering a Bright Future

    • August 8, 2019
    • YouTube

    Nuclear Fusion holds the potential to free us of so many of the constraints offered by everything from fossil fuels to renewable energy option like wind and solar, if we can just get it working. Today we'll look at the challenges facing us in terms of the physics and engineering, the various possible reactors like the Tokamak, Poylwell, NFI, and more, and see what a bright future fusion might offers us. Check out the Butterfly Effect: https://watchnebula.com/isaacarthur

  • S05E47 Megastructure Maintenance & Space Janitors

    • August 15, 2019
    • YouTube

    In the future humanity might build structures of incomprehensible size and splendor, megastructures and artificial worlds, but somebody is going to have to build and maintain these feats of science and engineering and clean up all the orbital debris.

  • S05E48 Things Which Will Never Exist

    • August 22, 2019
    • YouTube

    It's popular to say nothing is impossible, especially in regard to the future and our Universe, but are there somethings which might turn out to be impossible or at least so impractical they never occur?

  • S05E49 SFIA Monthly Livestream: August 25, 2019

    • August 25, 2019
    • YouTube

  • S05E50 Space Derelicts & Trash Worlds

    • August 29, 2019
    • YouTube

    Science fiction delights in showing us brave adventurers boarding abandoned spaceships, exploring ancient alien worlds and space hulks, or surviving on planets turned into giant garbage dumps, but how realistic is this idea? And what sort of civilizations and cultures might spring up around such efforts?

  • S05E51 The Paperclip Maximizer

    • August 1, 2019
    • YouTube

    A Paperclip Maximizer is an example of artificial intelligence run amok performing a job, potentially seeking to turn all the Universe into paperclips. But it's also an example of a concept called Instrumental Convergence, where two entities with wildly different ultimate goals might end up acting very much alike. This concept is very important to preparing ourselves for future automation and machine minds, and we'll explore that today.

  • S05E52 Space Sports

    • September 5, 2019
    • YouTube

    Humanity has a long and inventive history of sports and games, and the future will offer us many new options for athletics as we move out in space, be it racing around the Moon, climbing the mountains of Mars, hang gliding on Venus, or zero-g gymnastics. We'll also explore potential challenges and opportunities offered by genetic enhancement, cybernetics, and virtual reality.

  • S05E53 Springtime on Mars: Terraforming the Red Planet

    • September 12, 2019
    • YouTube

    Colonizing Mars and terraforming it to be a comfortable future home for humanity is quite the challenge. How would we go about it and how close is close enough for our purposes? How would we let life grow on the open surface of Mars and how would we give air and water and potentially even alter its day, year, and gravity?

  • S05E54 The Fermi Paradox: Extinction

    • September 19, 2019
    • YouTube

    The Fermi Paradox ask us how in a Universe so vast and ancient we seem to be the only intelligent civilization around, with no older interstellar alien empires visible in the galaxy. But could extinction play a role in that, or might extinction events instead drive evolution forward?

  • S05E55 Aloof Aliens

    • September 26, 2019
    • YouTube

    Discussion of advanced extraterrestrial civilizations often hinges on the idea that they may have ascended to a higher state or higher level of reality, and lost interest in us and the rest of the galaxy. While we can't know what technologies or enlightened paths they might have available, we can ask how realistic the portrayals of those aliens might be, and if this notion make sense as a Fermi Paradox solution.

  • S05E56 SFIA Monthly Livestream: September 29, 2019

    • September 29, 2019
    • YouTube

  • S05E57 Spacesuits & Extreme Environment Gear

    • October 3, 2019
    • YouTube

    There's many dangerous places on Earth, and everywhere off Earth is downright lethal, from the emptiness of space to the airless and radiation soaked Moon to the smoldering inferno of Venus, humanity can't visit them without protection. We'll see what options for spacesuits are under works and what options might emerge for even better ones in the distant future.

  • S05E58 Winter on Venus

    • October 10, 2019
    • YouTube

    Venus is a desolate scorching world on which no life can exist. Yet if it can be cooled down, there is no other planet we know of more suitable for terraforming and colonization. We will examine methods of cooling Venus down and preparing it to be settled in the future.

  • S05E59 High-Tech Search & Rescue

    • October 17, 2019
    • YouTube

    When people get lost, stranded, or stuck in dangerous situations, we go and rescue them. Today we'll look at what new dangers may face us in the future and what new tools technology might offer us to improve survival chances.

  • S05E60 The Butterfly Effect

    • October 20, 2019
    • YouTube

    The Butterfly Effect is the principle that notes that even the smallest actions can have sweeping effects on everything in the long term. Today we'll look at that effect and ask what it means toward chaos, inevitable events, fate, and free will itself.

  • S05E61 Mind-Machine Interfaces

    • October 24, 2019
    • YouTube

    The ability to link mind and machine has long been the realm of science fiction, but now improvements in our understanding may allow us to network brain to computer in the near future. Companies like Neurolink have begun to explore how to link our neurons to machine, and we'll explore now such neural interfaces might function and how they might change our lives.

  • S05E62 SFIA Monthly Livestream: October 27, 2019

    • October 20, 2019
    • YouTube

  • S05E63 The Fermi Paradox: Rare Technology

    • October 31, 2019
    • YouTube

    The Fermi Paradox, the big question of where all the aliens are, has many proposed solutions focusing on what might lower the odds of intelligent species arising on another world, or what might end technological civilizations or cause them to go unseen by us and our SETI efforts. But what if intelligence rarely leads to technological civilizations in the first place? Could there be countless planets in our galaxy occupied by species who never came to value technology?

  • S05E64 Cloning & Duplication: Me, Myself, and I

    • October 31, 2019
    • YouTube

    Cloning people is a staple of science fiction, and now something science can do, but what are the future social and legal consequences of cloning, and can we learn to make fully grown clones or even duplicate our memories?

  • S05E65 Cybersecurity

    • November 7, 2019
    • YouTube

    Every age produces new wonders and new challenges, and for the information age one of those is cybersecurity. We'll attempt to demystify the topic and explain some of the core concepts of keeping your computer secure and your personal data private.

  • S05E66 Spaceship Design

    • November 14, 2019
    • YouTube

    From the most basic rockets to future ships designed for interstellar or even intergalactic flight, spaceship design is all about mission purpose, available technology, and keeping your crew safe and comfortable.

  • S05E67 AI Aliens

    • November 17, 2019
    • YouTube

    We often consider interacting with Aliens and Robots in the future, but what about Alien Robots? Today we'll ask what artificial intelligence created by aliens might look like and what sort of circumstances we'd encounter them, and if they may be the only aliens we ever encounter.

  • S05E68 The Fermi Paradox: Late Filters

    • YouTube

    The Fermi Paradox asks why we don't see any alien civilizations with our SETI efforts. The Late Filters are common solution suggested, that intelligent species may often arise but either destroy themselves or unwilling or incapable of interstellar travel to reach new worlds and colonize the galaxy.

  • S05E69 SFIA Monthly Livestream: November 24, 2019

    • November 24, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, November 24, 2019, and get your questions about the channel and episodes on chat to be answered!

  • S05E70 Gods & Monsters: Space as Lovecraft Envisioned it

    • November 28, 2019
    • YouTube

    H.P. Lovecraft is known as the father of the Cosmic Horror genre of fiction. The creator of Cthulhu and many other terrifying dark gods in his novels paints a bleak and decaying view of our world and the Universe. Today we'll examine what it might imply if that nihilistic and grim view of reality was correct.

  • S05E71 Welcome to the Galactic Community!

    • December 5, 2019
    • YouTube

    We often wonder how we might first meet extraterrestrials, picturing flying saucers and UFOs landing and aliens emerging asking to be taken to our leader - but joining the galactic community might be a very strange experience.

  • S05E72 Accessing Earth's Core

    • December 12, 2019
    • YouTube

    All of our civilization exists only a thin layer of Earth's surface, and our deepest mines barely scratch our planet. We often talk about finding new mineral resources on other worlds or asteroids in the future, but are we ignore a treasure beneath our feet, and what other technologies and engineering might we utilize in Earth's depths?

  • S05E73 Paranoid Aliens

    • December 15, 2019
    • YouTube

    We often accuse people of being paranoid about extraterrestrials, flying saucers, and UFOs - but what if it's the aliens who are paranoid?

  • S05E74 Space Pirates

    • December 19, 2019
    • YouTube

    Right now, for a limited time, you can get 3 months of Audible for just $6.95 a month. That’s more than half off the regular price Visit https://www.audible.com/isaac or text isaac to 500-500. Space Piracy is a classic theme of science fiction, but is there chance we'll see it in the future? We'll examine how it might develop in the next century around asteroid mining and how it might occur in the interstellar void as spaceships travel out to the wider galaxy.

  • S05E75 Interstellar Civilizations & Time

    • December 26, 2019
    • YouTube

    As we pioneer our way out from Earth to other planets and eventual the stars, our concept of time will change in more ways than just different calendars. We'll explore how interstellar civilizations might cope with everything from relativity to life extension and how century long voyages and time lags of communication over millions of worlds might be managed.

  • S05E76 SFIA Monthly Livestream: December 29, 2019

    • December 29, 2019
    • YouTube

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, December 29, 2019, and get your questions about the channel and episodes on chat to be answered!

Season 6

  • S06E01 Time Travel

    • January 2, 2020

    Is time travel possible, and if it is, what sort of civilizations would result? We'll explore the science that might permit it as well as the classic science fiction examples to see if they make sense.

  • S06E02 Conspiratorial Aliens

    • January 9, 2020

    Alien Conspiracy theories are too numerous to count, but are they simply being paranoid about UFOs or might aliens be conspiring against us? Alternatively, could an extraterrestrial civilization be conspiratorial by nature, and what motives might a galactic civilization have for involving themselves with us in secret?

  • S06E03 Fermi Paradox: Could Technology Develop Without Fire?

    • January 12, 2020

    Fire is often considered the foundation of human technology, but there may be many worlds on which it would not be likely to practical, such an ocean planets, and on which intelligent life like Dolphins might emerge. Could such worlds host technological civilizations anyway? Or would they be forever stuck at little to no technology?

  • S06E04 Moon: Industrial Complex

    • January 16, 2020

    The Moon is gateway to space, and in the future it might serve as an industrial and mining complex fueling vast production of spaceships, rocket fuel, satellites, space stations, and colonial habitats.

  • S06E05 Why Life Exists

    • December 23, 2020

    The big question of why life exists has challenged minds for countless centuries, but what does science have to say on this matter? Could life arise on other worlds and in other Universes, and what is the reason for it?

  • S06E06 SFIA Monthly Livestream: January 26, 2020

    • January 26, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, January 26, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E07 Life on board an O'neill Cylinder

    • January 30, 2020

    O'Neill Cylinders space stations are examples of large rotating habitats able to be constructed in space in which people and even a complex ecology might be transplanted. But what would it be like living in one and how would civilizations based inside them in the future tend to operate?

  • S06E08 Moon: Crater Cities

    • February 6, 2020

    The Moon is covered in vast numbers of craters, some larger than entire Earth-based Nations, which may serve as dome habitats for humanity's future space colonies. But what would a crater city colony be like?

  • S06E09 Coexistence of Humans & AI

    • February 9, 2020

    Artificial Intelligence, while still limited to only the most simplistic computers and robots, is beginning to emerge and will only grow smarter. Can humanity survive it's own creations and learn to coexist with them?

  • S06E10 Postponing the Heat Death of the Universe

    • February 13, 2020

    According to modern cosmology, one day all the stars will burn out and the Universe will be full of dead planets, black holes, and other stellar remnants, slowing decaying till entropy brings the Heat Death of the Universe. But could this fate be postponed or even reversed?

  • S06E11 Climate Change Mitigation: Near Term Solutions

    • February 20, 2020

    Climate Change can occur from many sources, natural or manmade. In order to handle these problems we may wish to utilize many of the technologies we've developed for future space exploration, colonization, and terraforming.

  • S06E12 SFIA Monthly Livestream: February 23, 2020

    • February 23, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, February 23, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E13 DNA Manipulation in Living Subjects

    • February 27, 2020

    Genetic Engineering and DNA alteration is an emerging technology with huge ramifications in the future, including potentially altering the DNA of adult humans, not just embryos or plants & animals.

  • S06E14 A Tribute to Freeman Dyson: Architect of the Future

    • February 29, 2020

    A brief look at the life and work of Physicist and Mathematician Freeman Dyson.

  • S06E15 The Fermi Paradox: Zoo Hypothesis

    • March 5, 2020

    The Zoo Hypothesis is a Fermi Paradox solution that assumes extraterrestrial civilizations can't be detected by our SETI efforts because they keep our whole world in an Alien Zoo.

  • S06E16 Industrial Belts in Space: How would Regions of Space industrially develop over time?

    • March 12, 2020

    Our future in space will require immense industry and infrastructure as we colonize out solar system and beyond. But how will those industries affect that colonization, and what form might an interplanetary civilization take from that influence?

  • S06E17 Can we have a Trillion People on Earth?

    • March 15, 2020

    Could Earth be home to a trillion people, or even more? We'll explore if we can do this with current technology, what future technologies would help, and what such a planet-wide city, an Ecumenopolis, might be like.

  • S06E18 The Fermi Paradox: Whispers in the Night

    • March 19, 2020

    We often speculate that the reason we can't hear aliens civilizations is because our SETI efforts (the Search for Extraterrestrial Intelligence) relies on radio and telescopes to weak to hear them. But how plausible is that? and what would it tell us about our own future?

  • S06E19 Life on a Low-Gravity Planet

    • March 26, 2020

    Science fiction loves to take us to desolate alien worlds with low-gravity, and envision creatures evolved to those or humans adapted to those conditions or zero-gravity in space, and many planets we might one day colonize like Mars do have low gravity... but our assumptions about life on such places correct or what if we're making incorrect assumptions?

  • S06E20 SFIA Monthly Livestream: March 29, 2020

    • March 29, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, March 29, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E21 New Technologies that May be in the Cards

    • April 2, 2020

    Every day brings us new technological advances, today we'll explore many of those of such as robotics, automation, rapid delivery, education, medical science, nanotechnology, and more.

  • S06E22 Technological Stagnation

    • April 9, 2020

    We often see science as an eternal march forward, but could a society stop advancing, either by choice or by running out own new things to discover.

  • S06E23 Non-Carbon Based Life

    • April 16, 2020

    Science Fiction has long contemplated the idea that alien life not based on carbon chemistry such as silicon might exist on distant and strange worlds, or might be made to exist advanced biological engineering. What would such life be like?

  • S06E24 The Future of Garbage

    • April 19, 2020

    The other side of the coin to all the new & future wonders we produce is what to do with them when they're old or broken. Today we examine the future of garbage, waste, and recycling.

  • S06E25 Economies of the Future

    • April 23, 2020

    The future of humanity might be one of unrivaled prosperity - a post-scarcity civilization - of abundant power, advanced automation and robotics, and sophisticated artificial intelligence helping boost efficiency to all economic sectors. But what would such an economy look like, and what challenges might we face getting there?

  • S06E26 Genetic Divergence & Civilization

    • April 30, 2020

    As humanity reaches out to the stars and make new homes on strange new worlds, how will our genetics & DNA change under those alien planets?

  • S06E27 Life as a Digital Being

    • May 7, 2020

    In the future we might see the rise of minds entirely on computers, be it uploaded humans, transhumans, or artificial intelligence. But what would such an existence be like? Would they interact with our world or live in entirely virtual realities or simulated universes?

  • S06E28 Parallel Universes & Alternate Realities

    • May 14, 2020

    Parallel Universes, Multiverses, Alternate Timeline & Realities are the focus of many theories of physics and popular science & science fiction.

  • S06E29 Conscious Stellar Objects

    • May 17, 2020

    Ancient cultures long thought the Sun had a mind of it's own, but could life form in stars by nature or exist by artificial origins, and what would star with a mind of its own be like?

  • S06E30 Antimatter Factories & Uses

    • May 21, 2020

    Antimatter represents both the most powerful weapon and most powerful fuel for a future humanity, if we can ever learn to make it efficiently and store it safely.

  • S06E31 Benevolent Aliens

    • May 28, 2020

    Science fiction often shows us seemingly benevolent aliens whose UFOs come in peace then turn out to have sinister motives and hidden conspiracies, but what would a genuinely friendly group of extraterrestrials be like?

  • S06E32 SFIA Monthly Livestream: May 31, 2020

    • May 31, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, May 31, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E33 Summer on Jupiter: Making a Second Sun

    • June 4, 2020

    Jupiter is an enormous gas giant, more massive than all the other planets in the solar system combined... and yet small compared to our Sun and other Stellar Objects. Could Jupiter be turned into a second sun via advanced technology?

  • S06E34 The Fermi Paradox: Firstborn

    • June 11, 2020

    As ancient and vast as the Universe is, it seems like some alien race arose in the galaxy long before us, but who rose before them? What would the cosmos be like for the first civilization to arise, and what if it is us?

  • S06E35 After AI

    • June 14, 2020

    Artificial Intelligence seems nearer everyday, and many people worry about a conflict between us and robots & computer minds, but what would life be like After AI?

  • S06E36 Space Police

    • June 18, 2020

    As we head out into space we can expect to see crimes and a need for laws and someone to enforce them. Today we'll examine the notion of Space Police and future crime and law enforcement.

  • S06E37 The Impact of Graphene

    • June 25, 2020

    Graphene, Carbon Nanotubes, and other hyper-strong materials have generated great interest in recent years, but how do they actually work and what will their impact on our future be?

  • S06E38 SFIA Monthly Livestream: June 28, 2020

    • June 28, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, June 28, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E39 Continent-Sized Rotating Space Habitats

    • July 2, 2020

    Mankind's future is among the stars, but not necessarily on other planets. Instead we might forge giant space stations that are entire artificial worlds, and today we'll explore some of those megastructure designs, like the McKendree Cylinder, Bishop Rings, Banks Orbital, Topopolis, and more.

  • S06E40 Life as a Brain in a Jar

    • July 9, 2020

    Science fiction loves to show us disembodied heads or brains floating in jars, but could this be one route to extending our lives? Or could you already be one living in false reality?

  • S06E41 Becoming an Interplanetary Species: First Steps

    • July 12, 2020

    Our future lies out among the planets and stars, but to climb out in to space we must take many steps to get off, and today we'll look at those first steps to becoming spacefaring species. From cheaper rockets & space stations to asteroid mining & defense to space tourism & commercialization, we've a long road ahead, but we have a roadmap.

  • S06E42 Let's Dismantle the Solar System!

    • July 16, 2020

    Our solar system contains many planets, moons, and asteroid that we may one day call home, but the future might instead be artificial space habitats, stations, and megastructures of vast size and numbers, using all those celestial bodies as raw materials to be dismantled for construction.

  • S06E43 The Fermi Paradox: Disappearing Stars & Cosmic Voids

    • July 23, 2020

    If the Universe is inhabited by older alien civilizations, those who have ventured out to the stars and colonized galaxies, we would expect to see a footprint of extraterrestrial activity. Could the many stars whose brightness has dimmed be indicative of Dyson Spheres or other Megastructures? Could the Cosmic Voids vastly bigger than any galaxy be the work of even greater and older starfaring species?

  • S06E44 SFIA Monthly Livestream: July 26, 2020

    • July 26, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, July 26, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E45 Techno-Barbarians

    • July 30, 2020

    Science fiction often shows us post-apocalyptic future civilizations with techno-barbarians running around in fur & hides but carrying laser weapons or other advanced technology. But how plausible is such a civilizations and what would it actually be like?

  • S06E46 The Impact of Superconductors

    • August 6, 2020

    Superconductors offer us a path to high-efficiency, low-loss power and energy, but the impact they'll have on our civilization through other technologies may be far greater, and we'll explore the science or superconductivity works and what future technology it will of us.

  • S06E47 Coming and Going: Navigating Space Between Megastructures

    • August 13, 2020

    Our future in space may be one of millions or even trillions of vast space station, space habitats, and megastructures. How would a space-faring civilization going about traveling around such an immense solar empire?

  • S06E48 Talkative Aliens

    • August 16, 2020

    The Search for Extra-Terrestrial Intelligence, SETI, relies on looking for signals from distant alien worlds where even very powerful signals can weaken to near nothing. We'll explore today how we, or extraterrestrials, might get around this problem, be it by immense star-powered transmitters or by using laser communication beams. Part 2 on The Exoplanets Channel: https://youtu.be/04AIXj78nJ0 Part 3 with Parallax Nick: https://www.youtube.com/watch?v=iim--...

  • S06E49 The Fermi Paradox: Galactic Disasters

    • August 20, 2020

    One possible solution to the Fermi Paradox, the big question of where all the aliens are, is that some ancient galactic disaster wiped out extraterrestrial civilizations, and we're among the first to arrive back on the spacefaring scene.

  • S06E50 Government Types of the Future

    • August 27, 2020

    Over the centuries humanity has tried many versions of government and many variations on each type, today we will examine how technology and space colonization might impact what types of governments we use in the future.

  • S06E51 SFIA Monthly Livestream: August 30, 2020

    • August 30, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, August 30, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E52 Nomadic Space-Based Civilizations

    • September 3, 2020

    Spaceships and fleets of the future may host their own unique civilizations of nomads, traveling the space lanes or venturing deep into interstellar space to colonize the galaxy or flee peril. What would such cultures be like?

  • S06E53 Colonizing Cislunar Space and the Lagrange Points

    • September 10, 2020

    To travel to other planets, we will first have to build up are infrastructure closer to home, in orbit of Earth. The best place to get all the mass for those space stations and rocket fuel depots is from the Moon, and we'll examine the milestones we'll need to reach to start lunar resource harvesting and building up space settlements.

  • S06E54 Asteroid Defense

    • September 13, 2020

    Asteroids represent a serious hazard to Earth, past, present, and future, but will be even more of a concern to humanity as we venture out to space beyond beyond our atmosphere's protection. We will explore what technologies and methods may be available to help protect us from asteroids.

  • S06E55 The Future of Fission

    • September 17, 2020

    Nuclear Fission was once hailed as the solution to our power & energy needs, but has grown unpopular of fears of radiation, meltdowns, and radioactive waste. However, advances in science and reactor design may make atomic energy safer and more attractive in the future.

  • S06E56 The Fermi Paradox: The Phosphorus Problem

    • September 24, 2020

    The genesis and origin of life may require a very rare and delicate mixture of certain chemicals. One of those is phosphorus, and trying to figure out how we ever got enough of it in Earth's primordial soup for life to form in the first place has long puzzled scientists. We will also discuss the recent discovery of Phosphine Gas in Venus's Atmosphere

  • S06E57 SFIA Monthly Livestream: September 27, 2020

    • September 27, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, September 27, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E58 Return to the Moon

    • October 1, 2020

    It's been over half a century since we first went to the Moon, and nearly as long since we last went. To Return to the Moon we need a base with a purpose, and we'll look at what purposes we have in mind and what the bases might be like as we head back to establish a Lunar Colony.

  • S06E59 Mega-Cities

    • October 8, 2020

    Science Fiction delights in showing us grim, dark, giant, and dystopian future cities of covered in garbage and where life is cheap, but how realistic are such metropolises and how can we avoid living in them?

  • S06E60 Response and Analysis of Recent UFO Disclosures from the US Military

    • October 11, 2020

    Recently the Military released Navy footage of 3 separate UFO or UAP - unidentified aerial phenomena - we will review that footage and consider both mundane explanations and the not-so-mundane, like secret projects, extraterrestrial origins, and what it might indicate about the technology and motivations of such alien civilizations if they are visitors from out in the galaxy.

  • S06E61 Low-Tech Spacefaring Civilizations

    • October 15, 2020

    We typically imagine interstellar civilizations as vastly superior in technology to modern times, but could the future see planets colonized by spaceships little better than our modern ones? Could some alien worlds allow space travel to develop far sooner and easier than it did on Earth? Or could civilizations abandon more advanced technology?

  • S06E62 Mars Base

    • October 22, 2020

    To become an Interplanetary Species we need to colonize another planet, and Mars will be our first target. To establish a base there, and a future settlement, we need to get their first, so we will also examine the Aldrin Cycler, a type of spacecraft that may make traveling to other worlds far easier.

  • S06E63 SFIA Monthly Livestream: October 25, 2020

    • October 25, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, October 25, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E64 Terrifying Aliens

    • October 29, 2020

    Aliens are portrayed in Science Fiction both as our potential saviors and best friends, as well as the stuff of nightmares. Would an extraterrestrial civilization be benevolent or terrifying, and how would we seem to them?

  • S06E65 Becoming a Kardashev-1 Post-Scarcity Civilization

    • December 5, 2020

    The Kardashev Scale measures how powerful a high-tech civilization is, with K-1 indicating a advanced society able to call on all the power of their planet, which we often envision as a Post-Scarcity Utopia. Is this the future of Humanity? And if so, how can we achieve it?

  • S06E66 Interstellar Trade & Cyclers

    • November 12, 2020

    Establishing Interstellar Trade and Commerce in the future will require an entirely new approach to moving cargo, as years if not centuries might pass for shipments to arrive by even the fastest spaceships, but may be aided by the use of vast interstellar Cycler Castles traveling on century long trade routes.

  • S06E67 Fermi Paradox: The Prime Directive

    • November 15, 2020

    One solution to the Fermi Paradox, the big question of where all the aliens are, is that extraterrestrials might hide from us to avoid altering our society, a concept we see in Star Trek called the Prime Directive. Is such a policy ethical, and if so, should we follow it?

  • S06E68 Asteroid Mining & Orbital Settlements

    • November 19, 2020

    Asteroids represent a threat to Earth, but in the future they may be a boon, serving as sources of vast wealth and resources, and as orbital settlements and keystones of interplanetary trade.

  • S06E69 Life as a Space Colonist

    • November 26, 2020

    In order to colonize space, we will need colonists willing to travel to desolate planets, moons, and asteroids to settle those worlds. What would life be like as a pioneer to the alien frontier?

  • S06E70 SFIA Monthly Livestream: November 29, 2020

    • November 29, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, November 29, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E71 Surviving the Next Century

    • December 3, 2020

    The last century has been one of awesome and often terrifying technological progress, and the next century offers as many wonders and terrors for us to navigate into our future.

  • S06E72 Space Colonies: From Outposts to Cities

    • December 10, 2020

    As we venture out into space to colonize new planets, moons, and asteroids, how will these new settlements grow from simple outposts in to developed worlds with cities and civilizations all their own?

  • S06E73 Terraforming: Forging New Worlds

    • December 13, 2020

    Our galaxy likely contains trillions of worlds, and perhaps none we could live on without great effort to make them like Earth. To colonize these worlds, to make them settlements for our descendants in the future, we must first terraform them.

  • S06E74 Interstellar Navigation

    • December 17, 2020

    Navigating the vast ocean of the galaxy to reach distant stars will be no easy matter, but future spaceships may find many new difficulties finding their way throughout space, and also throughout time.

  • S06E75 Low-Tech Kardashev-2 Civilizations

    • December 24, 2020

    Kardashev-2 Civilizations are hypothetical empires which encompass entire stars, with access to billions of times the energy Earth has, often seen as builders of megastructures like Dyson Spheres. But could civilizations with only the technology we have become Kardashev-2?

  • S06E76 SFIA Monthly Livestream: December 27, 2020

    • December 27, 2020

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, December 27, 2020, and get your questions about the channel and episodes on chat to be answered!

  • S06E77 Becoming an Interstellar Species

    • December 31, 2020

    As we move into space we prepare not just to settle the Moon and Mars, but stretch our reach out to other stars and settle the galaxy, becoming an interstellar species.

Season 7

  • S07E01 Civilizations at the Beginning of Time

    • January 7, 2021

    Our Universe is billions of years older than our planet, and we often contemplate alien civilizations that might have arisen early than us in our galaxy, but just how early could life have arisen?

  • S07E02 Cryonics: Frozen Civilizations

    • January 14, 2021

    Cryonic freezing offers a pathway to reap future medical technologies today by preserving someone for future restoration, but what would the impact of this technology be on civilization?

  • S07E03 Machine Overlords & Post-Discontent Societies

    • January 17, 2021

    Machines may help bring about a Post-Scarcity Utopia, assuming they don't take over instead, and we dream of a future that is a Post-Scarcity Utopia, but its dark reflection is the Post-Discontent society, one where through deception or brainwashing people do not even known how they are being deprived or oppressed.

  • S07E04 Oceanic Aliens

    • January 21, 2021

    Water is one of the most common substances in the Universe, and Earth has far more seas than land and life arose in the ocean first. Planets covered entirely in water may be common and abundant with life, including intelligence extraterrestrial life.

  • S07E05 Colonizing Red Dwarfs

    • January 28, 2021

    For every yellow star like our own there are ten times as many smaller stars. Red Dwarfs are the most common type of star, outnumbering all the others combined, and as we head out into interstellar space to colonize the galaxy, the exoplanets around these red alien suns may be the most common home for settlers.

  • S07E06 SFIA Monthly Livestream: January 31, 2021

    • January 31, 2021

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, January 31, 2021, and get your questions about the channel and episodes on chat to be answered!

  • S07E07 Zero-Gravity Civilizations

    • February 4, 2021

    Colonizing space and settling the minor planets and asteroids may mean adjusting to much lower levels of gravity, or micro-gravity, what sort of biological and cultural adaptations might that require of humanity?

  • S07E08 Dark Matter Technologies

    • February 11, 2021

    Dark Matter is both the most abundant and most mysterious substance in the Universe, what properties does it have and what technologies might we create to use it in the future?

  • S07E09 Multi-Species Civilizations & Co-Alien Habitats

    • February 14, 2021

    Science Fiction often shows us aliens and human living among one another in space, but how realistic are such portrayals and what sort of accommodation would extraterrestrials need for their environments? We will also ask if humans and aliens could live together, possibly even marry and have hybrid offspring.

  • S07E10 Orbital Bombardment

    • February 18, 2021

    They say you should always attack from the high ground, and there's no higher ground than from orbit. Today we'll examine orbital strikes, asteroid bombardment, kinetic weapons, dropships, and how to defend from them.

  • S07E11 Colonizing Giant Stars

    • February 25, 2021

    Giant Stars are often considered too hot and short lived to colonize, but it may be that they shall be the most powerful and pivotal systems in a future galaxy.

  • S07E12 SFIA Monthly Livestream: February 28, 2021

    • February 28, 2021

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, February 28, 2021, and get your questions about the channel and episodes on chat to be answered!

  • S07E13 The Next Century of War

    • March 4, 2021

    Future battlefields will employ ever-more technology, whether that battlefield is on earth, in the sea, in space, or in cyberspace. Today we will examine the roles robots, drones, artificial intelligence, armored suits, and nanotech may play in the future of war.

  • S07E14 Killing Stars

    • March 11, 2021

    When the largest of stars dies, the supernova they produce can outshine a whole galaxy, and potentially sterilize vast swathes of space. Future civilizations will need to be able to prevent or mitigate such events, though some might seek to artificially ignite a nova.

  • S07E15 Exo-Stellar Civilizations

    • March 14, 2021

    Our future in the galaxy is typically envisioned as tied to the stars, be it on planets orbiting them or vast megastructures fueled by the alien suns, and yet the true future of humanity might be to dwell in the vast gulfs between the stars or even in a galaxy in which those stars have ceased to exist.

  • S07E16 Resurrection

    • March 18, 2021

    Perhaps the most sought after technology is not the ability to extend life, but to restore it once it is gone. We will examine the technological options that may be available to us in the future.

  • S07E17 What is Sentience?

    • March 25, 2021

    In the future we may encounter or create minds equal to our own, smarter, or somewhere in the gap between human and animal. And yet we still barely understand what concepts like intelligence and sentience truly are.

  • S07E18 SFIA Monthly Livestream: March 28, 2021

    • March 28, 2021

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, March 28, 2021, and get your questions about the channel and episodes on chat to be answered!

  • S07E19 AI Run Government

    • April 1, 2021

    In the future we will rely ever more on Artificial Intelligence to run our civilization, but what role will AI and computers playing in governing?

  • S07E20 The Fermi Paradox: Drake's Equation

    • April 8, 2021

    Drake's Equation lies at the core of the Fermi Paradox and SETI, the Search for Extra-Terrestrial Intelligence, but is it a good guide in our search for aliens, and what does modern astronomy tell us about the probabilities of finding life on exoplanets?

  • S07E21 The Effects of Longer Lifespans

    • April 11, 2021

    In the future, medical science may increase lifespan and longevity to the point of near-immortality, but what would be the effects of such technology on our civilization.

  • S07E22 Creating a Sense of Purpose in a Post-Scarcity Society

    • April 15, 2021

    In the future technology may help us enjoy prosperity beyond our dreams, with robots manufacturing our goods and attending all our needs but one... our need for purpose.

  • S07E23 Post-Human Species

    • April 22, 2021

    As Humanity moves into the future, traveling to other worlds and exploring genetics, AI, transhumanism, and cybernetics, we may begin to diverge into a thousand post-human species.

  • S07E24 SFIA Monthly Livestream: April 25, 2021

    • April 25, 2021

  • S07E25 The Fermi Paradox: Multiverse

    • April 29, 2021

    The Fermi Paradox contemplates the weirdness of our galaxy seemingly being devoid of intelligent alien life, but Many Worlds Theory, Multiverses, Parallel Universe, and Alternate Realities may radically alter our thinking on Aliens & SETI.

  • S07E26 Biotech: Human Modification and Augmentation

    • May 6, 2021

    In the future Biotechnology may allows us repair, modify, or augment humans, but how will this be done? What will these technologies look like and should we embrace them?

  • S07E27 Alien Languages

    • May 13, 2021

    One day humanity might make contact with an alien race, but will we be able to understand their languages?

  • S07E28 Laser Pistols & Lightsabers

    • May 16, 2021

    Science fiction amazes us with futuristic technology and weapons, but many like the laser pistol, raygun, or lightsaber seem high-tech versions of old tech. Are such weapons possible and if so, could they have a role in future warfare?

  • S07E29 Arcology Design

    • May 20, 2021

  • S07E30 The Fermi Paradox: Solar Flares

    • May 27, 2021

  • S07E31 SFIA Monthly Livestream: May 30, 2021

    • May 30, 2021

  • S07E32 Could Two Alien Races Evolve on the Same World?

    • June 3, 2021

  • S07E33 Future Manhattan Projects

    • June 10, 2021

  • S07E34 Death Rays

    • June 13, 2021

  • S07E35 Galactic Domination: Empire Eternal

    • June 17, 2021

  • S07E36 Brain-Computer Interfaces

    • June 24, 2021

  • S07E37 SFIA Monthly Livestream: June 27, 2021

    • June 27, 2021

  • S07E38 Cheating Reality

    • July 1, 2021

  • S07E39 Galactic Domination: Strip Mining the Galaxy

    • July 8, 2021

  • S07E40 The Geopolitics of Space Colonization

    • July 10, 2021

  • S07E41 Annoying Aliens

    • July 11, 2021

  • S07E42 Mars First vs Moon First

    • July 14, 2021

    There's a great debate of whether our next step into space should be a permanent Moon Base or our first manned mission to Mars.

  • S07E43 The End of Earth

    • July 22, 2021

  • S07E44 SFIA Monthly Livestream: July 25, 2021

    • July 25, 2021

  • S07E45 The Galactic Laboratory

    • July 29, 2021

  • S07E46 Embracing Nuclear Power

    • August 5, 2021

    Nuclear power is a controversial source of energy, seen by some as a miracle source of clean and abundant power, and by others as a source of radioactive waste and danger. But with new generations of safer reactors and alternate options like breeder reactors and thorium, is it time to embrace nuclear power?

  • S07E47 The Next Space Station

    • August 12, 2021

  • S07E48 Aliens Artifacts & Xenoarcheology

    • August 15, 2021

  • S07E49 Fusion Propulsion

    • August 19, 2021

    Fusion is the power of the stars, and if we can master it, we will be able to send our spaceships to others stars.

  • S07E50 The Edge of the Universe

    • August 26, 2021

    The Universe is immense. Does it have an edge out beyond the Cosmological Event Horizon? Or in time, before the Big Bang? Or in higher dimensions like Hyperspace?

  • S07E51 SFIA Monthly Livestream: August 29, 2021

    • August 29, 2021

    Our monthly livestream Q&A session. Join us 4pm EST, Sunday, August 29, and get your questions about the channel and episodes on chat to be answered!

  • S07E52 The Future of Thorium

    • September 2, 2021

  • S07E53 Human-Machine Teaming

    • September 9, 2021

    Teaming up with the machines we’ve designed and created has boosted our production and let us attempt things we never could have before, but as Artificial Intelligence emerges, what will Human-Machine Teaming come to look like?

  • S07E54 Stealth Spaceships

    • September 12, 2021

  • S07E55 Megastructure Death

    • September 16, 2021

    Megastructures of the future may range in size from cities to entire galaxies, and must be built to withstand damage and time, but how is this done and what happens when a megastructure dies?

  • S07E56 The Fermi Paradox: Hidden Alien Civilizations

    • September 23, 2021

  • S07E57 SFIA Monthly Livestream: September 26, 2021

    • September 26, 2021

  • S07E58 A Future Without Money?

    • September 30, 2021

    Many dream of a future with lots of money, other where currency is a thing of the past, a prosperous post-scarcity civilization, but could such a future be possible and what would a society without money be like?

  • S07E59 Standing Out in a Civilization of Trillions

    • October 7, 2021

  • S07E60 The Future of Farming

    • October 14, 2021

    Advances in farming have let us feed billions. The future of agriculture offers many more innovations in robotics, hydroponics, aquaponics, aeroponics, greenhouses, and more… but will it be a future of mega-farms or small farms?

  • S07E61 Sentient Planets & World Consciousnesses

    • October 17, 2021

    We often imagine that our planet might be a sentient entity - Gaia - but could something like this evolve under known science? And might a conscious world be something we might create in the future?

  • S07E62 Convergent Evolution

    • October 21, 2021

    Science Fiction often shows us aliens who look much like humans, and suggest this is a result of convergent evolution to useful traits. But is such convergence to the human form or mind likely with extraterrestrial life?

  • S07E63 Criminal AI

    • October 28, 2021

  • S07E64 SFIA Monthly Livestream: October 31, 2021

    • October 31, 2021

  • S07E65 Spaceports: Ascending to the Stars

    • November 4, 2021

  • S07E66 Solar System Colonization Strategies

    • November 11, 2021

  • S07E67 Folding Space

    • November 14, 2021

  • S07E68 Belligerent Aliens

    • November 18, 2021

  • S07E69 How Colonizing Space Can Save Earth

    • November 25, 2021

  • S07E70 SFIA Monthly Livestream: November 28, 2021

    • November 28, 2021

  • S07E71 The Fermi Paradox: Digital Empires & Miniaturization

    • December 2, 2021

  • S07E72 Upcoming Advances in Material Science

    • December 9, 2021

  • S07E73 Colonizing Space: Staking & Jumping Claims

    • December 12, 2021

  • S07E74 Vertical Farming

    • December 16, 2021

  • S07E75 Escaping the Galaxy

    • December 23, 2021

  • S07E76 SFIA Monthly Livestream: December 26, 2021

    • December 26, 2021

  • S07E77 Challenges & Predictions for the Next 100 Years

    • December 30, 2021

    One day humanity might find itself competition on the galactic stage, and need to flee aliens, artificial intelligence, or even other humans. How could the escape pursuit and survive the long exodus to safety?

Season 8

Season 9

  • S09E01 Interstellar Colonization Strategies

    • January 5, 2023

    As we seek to travel vast distances to claim the galaxy, we will need to develop strategies and methods for voyaging through deep space and reaching strange new worlds.

  • S09E02 What If We Never Become Post-Scarcity

    • January 12, 2023

    A day may come when our technology permits vast prosperity for everyone, with robots and other automation producing plenty, but if that day never comes, what will life be like?

  • S09E03 The Dark Forest, Aliens, and a Hostile Galaxy

    • January 15, 2023

    When we look up into the night skies, all we see is absence and silence, but could our galaxy be a dark forest full of hidden predators waiting to consume us?

  • S09E04 The Omega Point

    • January 19, 2023

    The Omega Point Cosmological Theory argues that it may be possible to continue existing until the End of Time itself.

  • S09E05 Using Asteroids As Spaceships

    • January 26, 2023

    Current theory says the dinosaurs came to an end when a giant asteroid from space crashed into Earth, wouldn’t it be ironic then if we sent asteroids out from Earth into deep space to colonize other worlds?

  • S09E06 SFIA Monthly Livestream: Sunday, January 29, 2023

    • January 29, 2023

    A recording of SFIA's monthly livestream Q&A session [#51] from January 29, 2023.

  • S09E07 Planetary Terraforming Strategies

    • February 2, 2023

    Once we journey out to the stars, we will need to forge new worlds to live on. Choosing the best terraforming techniques for each planet and star system will be vital to surviving on alien worlds.

  • S09E08 Hycean Planets & Ice Worlds

    • February 9, 2023

    Our telescopes find new exoplanets and reveal deeper details about them everyday, unveiling massive hydrogen-rich atmosphere planets and icy worlds which may be able to harbor life even far from any star.

  • S09E09 Super Soldiers

    • February 12, 2023

  • S09E10 Multiverse Warfare and Quantum Mania

    • February 23, 2023

  • S09E11 Journey to Alpha Centauri

    • February 23, 2023

    Alpha Centauri may be the closest star system to us, but reaching it will be the voyage of a lifetime.

  • S09E12 Monthly Livestream Q&A

    • February 26, 2023

  • S09E13 Space Habitats

    • March 2, 2023

  • S09E14 Intergalactic Voyages

    • March 9, 2023

  • S09E15 Surviving An Apocalypse

    • March 12, 2023

  • S09E16 The Future of Archeology

    • March 12, 2023

    Powerful new technologies are helping us learn more about our past, uncovering lost cities and recreating documents that time destroyed.

  • S09E17 Hacking The Simulation

    • March 23, 2023

    Many speculate that the world isn't real, that it a dream or simulation, but if it is, how to we get out of it or control it?

  • S09E18 SFIA Monthly Livestream: Sunday, March 26, 2023 4pm EST

    • March 26, 2023

  • S09E19 Advanced Spaceship Drive Compendium

    • March 30, 2023

    In order to reach the stars we will need vastly more powerful engines for our spacecraft than modern rockets offer. Fortunately, when it comes to possible ship drives, the sky is not the limit.

  • S09E20 The Fermi Paradox: Galactic Habitable Zones

    • April 7, 2023

    Our galaxy is a dangerous place for life. A vast storm of stars in which new ones are born and die in deadly displays. How much of the galaxy is truly safe for life to emerge in?

  • S09E21 Nuclear Power: Small Modular Reactors

    • April 13, 2023

  • S09E22 Super Weapons

    • April 16, 2023

  • S09E23 Life on Giant Moons

    • April 20, 2023

  • S09E24 SFIA Monthly Livestream: Sunday, April 23, 2023 4pm EST

    • April 23, 2023

  • S09E25 Smart Cities

    • April 27, 2023

  • S09E26 The Fermi Paradox: Searching For Dyson Spheres

    • May 4, 2023

  • S09E27 Misconceptions About Space, Time & The Universe

    • May 11, 2023

  • S09E28 Hive Worlds

    • May 14, 2023

    Science fiction often shows us dark, grimy, dystopian mega-cities in the future, but are such planet-wide cities possible, what would they be like, and how many people could they hold?

  • S09E29 Hungry Aliens

    • May 18, 2023

  • S09E30 Warping Reality

    • May 25, 2023

  • S09E31 Colonizing the Kuiper Belt

    • June 1, 2023

  • S09E32 Space Towers

    • June 8, 2023

  • S09E33 Higher Dimensional Aliens

    • June 10, 2023

  • S09E34 Artificial Afterlives

    • June 15, 2023

  • S09E35 Life in 2323 A.D.

    • June 22, 2023

  • S09E36 Earth After Humanity

    • June 29, 2023

  • S09E37 SFIA Monthly Livestream Q&A #55 - June 25, 2023

    • June 25, 2023

    Our monthly livestream Q&A session recorded on Sunday June 25, 2023, at 4pm EST.

  • S09E38 Lunar Mining, Processing & Refining

    • July 6, 2023

  • S09E39 Mobile Cities

    • July 13, 2023

    Humanity has often preferred to move its communities, and in the future we might do that by moving our entire cities, by air, sea, or land.

  • S09E40 Robots & Warfare

    • July 16, 2023

    Robots play an ever greater role in every aspect of our lives, including the battlefield, but what will their role be in the wars of the future?

  • S09E41 Ammonia-Based Lifeforms

    • July 20, 2023

  • S09E42 Dropships & Drop Pods

    • July 27, 2023

    The ability to get a strike force anywhere and fast is of vast strategic value, and the future may dropships landing anywhere on a planet within minutes.

  • S09E43 SFIA Monthly Livestream Q&A #56 - July 30, 2023

    • July 30, 2023

    Our monthly livestream Q&A session recorded on Sunday July 30, 2023, at 4pm EST.

  • S09E44 Lunar Space Elevator

    • August 3, 2023

    A Space Elevator on the Moon, made of mundane materials, could be built with modern technology, and allow ultra-cheap freight off the Moon.

  • S09E45 Planets vs Megastructures - SFIA 750,000 Subscriber Special Edition

    • August 6, 2023

  • S09E46 The Last Planet

    • August 10, 2023

    Eons from now the last stars will be born, living trillions of years before they too fade out, and in the gathering darkness will come the final sunset on the last planet.

  • S09E47 Cyborg Armies

    • August 17, 2023

    In the future we may deploy armies of cybernetic superhumans to fight our battles, people so augmented they could tear through walls or dodge bullets. But would these invincible warriors be willing to fight for mundane humans, or merely fight each other to rule us?

  • S09E48 Comet Mining

    • August 17, 2023

    Comets have awed, amazed, and even terrified humanity for thousands of years, with many believing they heralded the end of the world, but could they be the key to reaching and creating new worlds?

  • S09E49 Human Devolution Morlock & C.H.U.D.s

    • August 24, 2023

    Humanity has evolved in the face of much hardship and turmoil, and invented technologies to aid us, but could an end to hardships be our undoing and cause us to devolve?

  • S09E50 SFIA Monthly Livestream 57: August 27, 2023

    • August 27, 2023

    Our monthly livestream Q&A session recorded on 57: August 27, 2023 at 4pm EST.

  • S09E51 Near Term Space Colonization

    • August 31, 2023

    Many millennia from now we may have journeyed out to colonize billions and billions of planets in our galaxy, but every journey has to start somewhere.

  • S09E52 Living in Space

    • September 7, 2023
    • Nebula

    We often dream of a future out in the galaxy, exploring and settling strange new worlds under the light of alien suns, but what would living in space truly be like?

  • S09E53 Bussard Ramjet Starship Drive

    • September 10, 2023
    • Nebula

    They say space is the future, out among the countless billions and billions of new worlds in our galaxy, but a journey needs a path or road, so what sort of roads will we build in space?

  • S09E54 Interplanetary Infrastructure

    • September 14, 2023
    • Nebula

    They say space is the future, out among the countless billions and billions of new worlds in our galaxy, but a journey needs a path or road, so what sort of roads will we build in space?

  • S09E55 The Fermi Paradox: Fallen Empires

    • September 17, 2023
    • Nebula

    The cosmos seem silent and empty of any great interstellar empires, but perhaps they once existed, and if so, what titanic ruins might they have left behind?

  • S09E56 Atmospheric Mining

    • September 21, 2023
    • Nebula

    Science fiction has popularized asteroid mining and cities in the sky, but could the future of mining be in cloud cities hanging far above distant worlds?

  • S09E57 SFIA Monthly Livestream: Sunday, September 24

    • September 24, 2023
    • Nebula

  • S09E58 Have Space Suit - Will Travel

    • September 28, 2023
    • Nebula

    Space is often called the final frontier, a place of billions and billions of worlds awaiting explorers and pioneers. But what will those journeys be like, and what gear will people need for them, and perhaps most importantly of all, what sort of people will make those travels?

  • S09E59 Science & Futurism Shorts Compilation #1: 1-20

    • October 1, 2023
    • Nebula

    A collection of the first 20 Shorts from SFIA, covering a wide range of topics in science & space.

  • S09E60 Zero Point Energy

    • October 5, 2023
    • Nebula

  • S09E61 Spaceship Factories

    • October 12, 2023
    • Nebula

  • S09E62 Forgeworlds & Industrial Planets

    • October 15, 2023
    • Nebula

    The industrial revolution saw the rise of factories so big they often grew entire towns or cities around them to operate, but in the future entire planets might be used to fuel the titanic projects for conquering the stars themselves.

  • S09E63 Is Life Extension Ethical

    • October 19, 2023
    • Nebula

  • S09E64 Fortress Worlds

    • October 26, 2023
    • Nebula

    In some of our greatest wars on this world we have seen entire regions covered in fortifications, but in great wars across whole regions of our galaxy, could we see entire planets fortified?

  • S09E65 SFIA Monthly Livestream Q&A #59 - October 29, 2023

    • October 29, 2023
    • Nebula

    Our penultimate monthly livestream Q&A session recorded on Sunday, October 29, 2023, at 4pm EST.

  • S09E66 Rebel Space Colonies

    • November 2, 2023
    • Nebula

    Throughout history it has been common for distant colonies to break away from their homeland. In a future where colonies are entire planets and light years from home, shall history repeat itself?

  • S09E67 The Fermi Paradox Compendium of Solutions & Terms

    • November 9, 2023
    • Nebula

    In the grand theater of the cosmos, amidst a myriad of distant suns and ancient galaxies, the Fermi Paradox presents a haunting silence, where a cacophony of alien conversations should exist. Where is Everyone? Or are we alone?

  • S09E68 Human Aliens

    • November 12, 2023
    • Nebula

    As we search the heavens for signs of alien life, is it possible that the easiest place to find aliens is to look in the mirror?

  • S09E69 Domes Of Mars

    • November 16, 2023
    • Nebula

  • S09E70 Double Planets

    • November 23, 2023
    • Nebula

    Among the billions and billions of planets and moons in this galaxy, we may encounter many examples of double planets, but what would they be like and could life arise on them?

  • SPECIAL 0x7 Changing SETI Strategies

    • November 27, 2022
    • Nebula

    In this bonus companion video for The Plan For After SETI Is Successful, we'll examine the current SETI methodologies for hunting for Extraterrestrial Intelligence, there limitations, and how they might be updated or added to.

  • S09E71 Space Hygiene

    • November 26, 2023
    • Nebula

    In order to survive and thrive in space, we have to be able to create and maintain clean and comfortable living spaces, and remain vigilant nothing disease or virus reaches Earth.

  • S09E72 Agriworlds

    • November 30, 2023
    • Nebula

    In the past, we had entire civilizations devoted to agriculture, but in the future, we might have entire planets devoted to it.

  • S09E73 Orbital Defense Platforms

    • December 3, 2023
    • Nebula

    In science fiction we often see immense starships attacking planets, crushing or besieging them, but in our own future we may deploy powerful orbital fortresses to defend our world.

  • S09E74 Selecting Crew For A Spaceship

    • December 7, 2023
    • Nebula

    In the future we will travel to strange new worlds, but who will pilot the spaceships that take us there?

  • S09E75 Nihilistic Aliens

    • December 10, 2023
    • Nebula

    Many doubt whether existence has any purpose or meaning, but could entirely civilizations become nihilistic. Would this spell their doom? And if not, what would they be like?

  • S09E76 Reality Manipulation

    • December 14, 2023
    • Nebula

    What does science tell us about reality and are there pathways to control, change, or re-create it?

  • S09E77 Silicon-Based Lifeforms

    • December 21, 2023
    • Nebula

    In the grandeur of the universe, the tapestry of life may be woven from stranger threads than we ever dared to dream, and spun from materials far different to our own.

  • S09E78 Will We Colonize Space?

    • December 24, 2023
    • Nebula

    We often discuss if space travel is feasible and if we can settle strange new worlds, but if we can, there is still the question of if we will.

  • S09E79 Clearing Space Debris

    • December 28, 2023
    • Nebula

    Our future lies among the stars, and many challenges must be overcome to reach them. One of those challenges is making sure our ships don’t crash into our own garbage littering orbit.

  • S09E80 Last Livestream Q&A

    • December 31, 2023
    • Nebula

    Our Final monthly livestream Q&A session recorded on New Year's Eve Sunday, December 31, 2023

  • SPECIAL 0x19 Giant Space Monsters

    • January 1, 2024

    Sci-fi thrills us with enormous space monsters and Kaiju, but could the galaxy already be home to such leviathans?

  • SPECIAL 0x20 Totopolis: The eternal river

    • February 1, 2024

    In the ancient past, civilization arose around long rivers that took weeks to travel down, but in the future we might build civilizations around rivers that were billions of miles long on a type of Megastructure known as a Topopolis.

  • SPECIAL 0x21 Crystal Aliens

    • March 1, 2024

    Crystals are not alive, but mimic life in many ways including growing. And yet, on distant alien planets, could life have grown based on crystals?

  • SPECIAL 0x22 Galactic Beacons

    • April 1, 2024

    It can be hard to hear a signal 100 miles away, so what does it take to make a beacon loud enough to hear 100,000 light years away?

  • SPECIAL 0x23 Machine Monitors

    • May 1, 2024

    To watch and guard and monitor a world for millions of years, or simply to keep a single person's house running, we may use machine sentinels & assistants, but how do we ensure they do their job?

  • SPECIAL 0x24 ISRU In-Situ Resource Utilization

    • June 1, 2024

    In order to succeed in space, we must be able to produce as much as possible on-site, or ‘in situ’, but what are the most critical resources to harvest and how do we do it?

  • SPECIAL 0x28 Caretaker AI & Genus Loci

    • October 1, 2024

    In the future we may use caretaker AI or even modified humans to care for cities, artificial habitats, ecosystems, or even whole worlds.

  • SPECIAL 0x29 Orbital Farms

    • November 1, 2024

Season 10

  • S10E01 The Fermi Paradox: Pancosmorio Theory

    • January 4, 2024

    Reaching new worlds is a difficult task, but transplanting ecosystem and civilizations to them may be even harder.

  • S10E02 Statites & Lagites

    • January 7, 2024

    A look at Statites, or Static Satellites, and variations like the Lagite, Quasite, Mag Sail, Solar Moth, and Non-Keplerian Orbits that offer us powerful foundations for advanced, Kardashev-scale space development.

  • S10E03 Is Uplifting Ethical

    • January 11, 2024

    Uplifting is the process of altering an animal - or even an alien - to be smarter or able to use technology. Our ability to do this seem inevitable, and with it a host of moral dilemmas.

  • S10E04 Aliens vs AI

    • January 14, 2024

    We often worry that humanity might be attacked by Aliens or AI, but which is worse and which would win in a battle between them?

  • S10E05 Space Regulation

    • January 18, 2024

    For us to live and build communities in space we will need law and order, but who will make the rules, what should they be, and what sheriff will see that the law is enforced?

  • S10E06 Lagrange Point Space Settlement

    • January 25, 2024

    Lagrange Points are the rare oases, stationary islands in space. As a result, they are invaluable real estate where we can build vast space habitats.

  • S10E07 Ancient Ghost Universes & Conformal Cyclic Cosmology

    • January 28, 2024

    In a future so distant that all has decayed to nothingness and time itself ceases to exist, might this eternal moment of oblivion bring on a fiery resurrection to all of space and time?

  • S10E08 Death Worlds

    • February 1, 2024

    The galaxy is a harsh place full of desolate and barren planets, but some worlds may be so deadly they actively seek to kill those who dare to travel to them.

  • S10E09 Space Homesteading

    • February 8, 2024

    In the future we will not simply travel to visit new worlds but seek to build homes and forge lives on them. So what would being a pioneer in space truly be like?

  • S10E10 Quarantined Planets

    • February 11, 2024

    Until recently a planet-wide state of quarantine seemed almost unimaginable, but in the future could entire planets be quarantined from the rest of space, and what dreadful causes could necessitate such measures?

  • S10E11 Quasar Cannons & Black Hole Tech

    • February 15, 2024

    Black holes are objects of mystery and dread from which nothing can escape… but could they also be the foundations of future civilizations of unimaginable might and size.

  • S10E12 Can We Terraform The Moon

    • February 22, 2024

    We have gazed upon the Moon with wonder since the dawn of humanity, and named its craters as seas, but could those become true seas one day?

  • S10E13 Vacuum Trains

    • February 25, 2024

    Vacuum Trains and other low pressure rail & maglev systems offer the possibility of ultra-fast and ultra-cheap transport on and off of Earth.

  • S10E14 Life On An Interstellar Ark Ship

    • February 29, 2024

    The vast gulfs between stars may take decades or even centuries to travel, requiring enormous generation ships carrying families and whole ecosystems with them. What will life be like on board such arks?

  • S10E15 Primordial Planets

    • March 3, 2024

    Our world is ancient, but the Universe is far older. What were those first planets like, and how soon can life emerge on new ones?

  • S10E16 Is Terraforming Ethical?

    • March 7, 2024

    In the future we may be able to claim new worlds and forge them into paradises, but should we?

  • S10E17 Alien Beer Is To Die For...

    • March 10, 2024

    A look at the possible effects of alien food, drink, and microbes on us or our ecosystem.

  • S10E18 Settling Mars: Phobos and Deimos

    • March 14, 2024

    The Red Planet beckons us toward it, and the day draws closer when humans will walk on its dusty surface, and the moons of Mars, Phobos & Deimos, may be our gateway to that future.

  • S10E19 Automated Justice

    • March 17, 2024

    As ever more automation works its way into our legal system and courts, we must ask what challenges and advantages AI has in justice, and if AI will come to be our judge and jury.

  • S10E20 The Fermi Paradox: Rare Complexity

    • March 21, 2024

    Life is incredibly complicated, but for most of Earth’s history it was much simpler. Is it possible the Universe is full of planets with very simple life, and complex organisms are rare?

  • S10E21 Kugelblitz Black Holes

    • March 28, 2024

    Black Holes can swallow anything, even light, and small black holes made from light itself may offer us abundant clean energy and a pathway to the stars.

  • S10E22 Multi-Planetary Empires

    • March 31, 2024

    One day humanity may settle countless worlds, but could any nation hope to govern multiple planets or even star systems?

  • S10E23 Clean Energy From Space

    • April 4, 2024

    Space offers a variety of clean and abundant sources of power, but how can we get them down to Earth? And which are safe and economical?

  • S10E24 The Fermi Paradox: Cronus Scenarios

    • April 7, 2024
    • Nebula

    We often worry that the reason we hear nothing in our search for extraterrestrial intelligence is that travel to other stars is just too hard, but what if a civilization decides it’s just too dangerous to allow?

  • S10E25 Defending Earth

    • April 11, 2024
    • Nebula

    The galaxy is an immense and mysterious place we may one day explore and settle, but for now, we have only one planet, and the galaxy holds many dangers, so what can we do to defend Earth?

  • S10E26 Stargates

    • April 14, 2024
    • Nebula

    We are fascinated by portals between worlds, gateways between stars, wormholes through the fabric of reality, but could these be real, and if so, what would the civilizations using them be like?

  • S10E27 Living In Lava Tubes

    • April 18, 2024

    Beneath the surface of the Moon lie vast underground caverns, some of which are miles long and wider than football fields, and they may make for excellent settlement sites.

  • S10E28 Colonizing White Dwarfs

    • April 25, 2024

    Stars give warmth and light to planets and make life possible, until they run out of fuel and die themselves, but could these dead stars still enable life to dwell around them?

  • S10E29 Colonization & Habitability Of Binary Star Systems

    • April 28, 2024

    There are billion of binary star systems in our galaxy, including many of those stars closest to us. Can such systems host life, and what would it be like to live under two suns?

  • S10E30 Blanks Orbitals

    • May 2, 2024

    The Banks Orbital is a ring-shaped Space Habitat over a million miles across with hundreds of times more living area than the entire Earth.

  • S10E31 The Fermi Paradox: Interdiction

    • May 9, 2024

    We often look out into the galaxy and wonder where all the civilizations are, but could it be that we don't see them because they have all chosen to exist in fortress star systems, surrounded by despoiled deserts of their own making?

  • S10E32 Alien Embassies

    • May 12, 2024

    We often imagine encountering many alien civilizations, and establishing trade and relationships with them, but what would being an alien ambassador be like?

  • S10E33 Cosmic Capitals

    • May 15, 2024

    One day our civilization may settle our whole galaxy, with mighty star empires consisting of millions if not billions of worlds, but what would the centers of such empires be like?

  • S10E34 Alternative Intelligence: The Other A.I.

    • May 23, 2024

    We think very highly of the human brain, after all, it's what lets us think about anything in the first place, but Nature is vast, and our primate brains are not the end-all and be-all of neural engineering.

  • S10E35 Space Freighters

    • May 26, 2024

    One day we may settle thousands of planets and trade between them, but what would a space freighter be like, who would crew them, and what would they carry?

  • S10E36 Colonizing Ganymede

    • May 30, 2024

    Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of wider human settlements around Jupiter.

  • S10E37 Jobs in Space

    • June 2, 2024

    We all dream of a future in space, but it will take a lot of work to get there and more to make it a place we can visit and live. Of course, where there’s work to be done, there’s jobs to be had.

  • S10E38 The Fermi Paradox: Timebombs

    • June 6, 2024

    Many fear future technologies may doom our civilization, but could the pursuit of technology, and civilization itself, be what dooms humanity?

  • S10E39 Oceanic Moons

    • June 13, 2024

    The galaxy has many stars orbited by many planets, and many of these are orbited by immense icy moons, but could others have oceans on their surface, or even life?

  • S10E40 Paradise Planets

    • June 16, 2024

    As we reach out to the stars and settle other worlds, could we find or create ones even better for humanity than Earth?

  • S10E41 What If The Dinosaurs Hadn't Died Off

    • June 20, 2024

    What if dinosaurs have survived the asteroid impact? Could we have seen a shared dino-mammal ecology, or even intelligent dinosaurs?

  • S10E42 Megastructures: Hollow Earth

    • June 27, 2024

    Earth is immense, but we only live on a thin shell of its surface. So what if we built a planet with only that thin shell, or with several layers of them?

  • S10E43 Free Will, Quantum & Orchestrated Objective Reduction

    • June 30, 2024

    An extended exploration of what science tells us about free will and consciousness in a quantum universe, including Sir Roger Penrose's theory of Orchestrated Objective Reduction.

  • S10E44 Roko's Basilisk: Dangerous Knowledge & All-Powerful AI

    • July 4, 2024

    The dangers of artificial intelligence have long loomed in our future, and seem ever closer. But it may be that the dangers of the future can reach back into the past itself, and even without a time machine.

  • S10E45 Cyborg Civilizations

    • July 7, 2024

    We often contemplate cyborgs, people enhanced by machines, but what would a civilization built upon cybernetics be like?

  • S10E46 The Insterstellar Colonization Compendium

    • July 11, 2024

    Space is huge, immense beyond our wildest dreams. In order to explore and settle it, we’ll need to learn to dream a lot bigger and bolder than ever before.

  • S10E47 Dormant Alien Empires

    • July 14, 2024

    When listen to void of space, we hear no alien signals, but could the galaxy be quiet because ancient empires slumber inside it?

  • S10E48 The Fermi Paradox: Fine-Tuned Universe

    • July 18, 2024

    Our universe is a strange place, with underlying rules we’re only just beginning to understand, but could the strangest thing of all about our Universe be that we are able to live here to observe it in the first place?

  • S10E49 Self-Repairing Machines

    • July 25, 2024

    We often try to distinguish between what is alive and what is a machine, and note that machines can't reproduce or fix themselves, but that may soon change.

  • S10E50 Nomadic Miners On The Moon

    • July 28, 2024

    We so often hear of mining asteroids, but the Moon outmasses every known asteroid combined dozens of times over again, and is closer to Earth too. So what would life be like mining on the Moon?

  • S10E51 Life As A Planetary Governor

    • August 1, 2024

    Join us for a journey to a new world, as we explore what it would be like to lead a colony mission.

  • S10E52 The Fermi Paradox: Migration

    • August 8, 2024

    We often wonder where all the vast and ancient alien civilizations are, but could it be that they've migrated far away in space or time, or even journeyed beyond our cosmos?

  • S10E53 Were Primitive Humans Uplifted?

    • August 11, 2024

    Many believe humanity's climb upward may have been assisted by outsiders. Is this possible, and if so, what does that tell us about our own past... and future?

  • S10E54 The Next Technological Revolution

    • August 15, 2024

    Technology has shaped our civilization as it grew down the centuries, and since the industrial revolution, each new generation seems defined by some new technological revolution… So what will the next revolution be?

  • S10E55 Battle Fleets

    • August 22, 2024

    In the future, fleets of unimaginable scope may battle over light years, in conflicts that might last milliseconds or entire centuries.

  • S10E56 Retrocausality: Cause After Effect

    • August 25, 2024

    Could something in the future alter the past, so that effect came before cause? Does quantum mechanics truly allow this, as often hinted?

  • S10E57 Gardens Of The Moon

    • August 29, 2024

    The Moon is barren and lifeless, but as we return to the Moon and settle there permanently, might we transform the brightest jewel in our sky into a glittering emerald full of life?

  • S10E58 Stellar Nomads

    • September 1, 2024

    In the future, we may colonize other planets or build artificial worlds for people to life on, but some may choose a nomadic life on spaceships instead.

  • S10E59 The Library of Babel

    • September 5, 2024

    The Library of Babel is repository of every book ever written... if you can find it.

  • S10E60 The Cities of Mars

    • September 12, 2024

    One day we will journey to the Red Planet and perhaps settle there, but what great civilizations and cities will emerge on the red sands?

  • S10E61 Anachronistic Technology

    • September 15, 2024

    In the future we may have technologies sufficiently advanced that they are indistinguishable from magic, but could those civilizations also be indistinguishable from primitive ones?

  • S10E62 Transcendence

    • September 19, 2024

    Many seek a path to enlightenment through study and meditation, but what does science tell us about transcendence? And could entire civilizations seek to leave this reality behind?

  • S10E63 Is Privacy Going Extinct?

    • September 26, 2024

    Technology brings us many wonders, but it may also bring about the end of our privacy. What, if anything, can we do to protect it?

  • S10E64 Life As An Astroid Miner

    • September 29, 2024

    We often envision filling space with vast megastructures people might live on in the future, and mining asteroids to provide the materials for their construction, but what would life as an Asteroid Miner be like?

  • S10E65 The Fermi Paradox: Large Moons

    • October 3, 2024

    One of Earth’s most unique features is the enormous gemstone in our sky we call the Moon, but could the Moon be the reason why we even exist?

  • S10E66 Colonizing Io

    • October 10, 2024

    Explore the challenges and possibilities of colonizing Io, Jupiter's volcanic moon, as we delve into the extreme conditions, scientific innovations, and potential for human settlement on one of the most hostile environments in our solar system.

  • S10E67 Fungal Aliens

    • October 13, 2024

    Fungus and Protista are far more ancient than animal life, and far more varied in form. So could alien fungi be more common in the galaxy, and might it spread through space by spores?

  • S10E68 Ocean Habitats

    • October 17, 2024

    Humanity has often lived with one foot on land and the other in the sea, but in the future, we may build our homes in the seas, here and on other worlds.

  • S10E69 Posthuman Pathways

    • October 24, 2024

  • S10E70 Dark Stars At The Beginning Of Time

    • October 27, 2024

  • S10E71 Ghost Armadas & Primordial Galactic Wars

    • October 31, 2024

  • S10E72 Early Terraforming

    • November 3, 2024

  • S10E73 Harvesting Planets

    • November 7, 2024

  • SPECIAL 0x25 Planetary Archives & Stasis Vaults

    • July 1, 2024

    We can imagine civilizations enduring for thousands or even millions of years, but if they can’t keep an accurate record of their own past for that long, can that civilization truly claim it endured all those eons?

  • SPECIAL 0x26 Jupiter Brains & Mega Minds

    • August 1, 2024

    We often contemplate superintelligent entities, and advances in AI and human mind augmentation may soon bring them about. But how big could they get? What would they think about? And might you, or I, one day become one ourselves?

  • SPECIAL 0x27 Exploring The Multiverse

    • September 1, 2024

    The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

Additional Specials

  • SPECIAL 0x1 SFIA 100k Subscribers Special

    • June 27, 2017
    • YouTube

    Today the channel has reached 100,000 subscribers and to celebrate that we'll take a look back at the channel's origins and thank some of the folks who've helped the channel grow. Our regularly scheduled episode will still appear Thursday morning.

  • SPECIAL 0x2 SENS Research Foundation Charity & Awareness for Project for Awesome 2017

    • December 15, 2017
    • YouTube

    Every year Project for Awesome runs a charity drive for many causes that viewers can vote for, with funds allocated to those which receive more votes. To vote for this video go to: http://www.projectforawesome.com/watc... This year SFIA is participating to help raise funds for the SENS Research Foundation. SENS [Strategies for Engineered Negligible Senescence] seeks to extend the length and quality of the human life. To learn more about SENS: http://www.sens.org

  • SPECIAL 0x3 A Tribute To Stephen Hawking

    • March 16, 2018
    • YouTube

  • SPECIAL 0x4 SFIA 250,000 Subscriber Special

    • May 19, 2018
    • YouTube

  • SPECIAL 0x5 Help Trash Eating Robots Clean up our Oceans with #TeamSeas

    • October 29, 2021
    • YouTube

  • SPECIAL 0x6 Planets vs Megastructures

    • June 6, 2022
    • Nebula

    A Nebula Exclusive examining the pros and cons of terraforming planets versus constructing immense space habitats and artificial worlds. This episode is a companion video to our Megastructure Compendium episode, out June 9th.

  • SPECIAL 0x9 Conformal Cyclic Cosmology

    • January 15, 2023
    • Nebula

    Conformal Cyclic Cosmology is a theory by physicist Roger Penrose for how the Universe might undergo cycles of decay and expansion, resetting over aeons, and in this Nebula Exclusive we'll explain the theory and how it might be proved.

  • SPECIAL 0x13 Nomadic Miners On The Moon

    • July 6, 2023
    • Nebula

    The Moon offers vast resources to assist us in exploring and settler new worlds, but to get those resources, someone will have to mine them.