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Home / Series / PBS Space Time / Aired Order / Season 2023 / Episode 21

Do We Need a NEW Dark Matter Model?

We have no idea what dark matter is, other than it’s some source of gravity that is completely invisible but exerts way more pull that all of the regular matter. More than all of the stars, all of the gas, all of the black holes…unless dark matter is black holes, then black holes are most of everything. Dark matter constitutes 80% or so of the mass in the universe, which means even our Milky Way galaxy is mostly a vast ball of dark matter that happens to have attracted a relative sprinkling of baryons—atoms in the form of gas, which lit up as starry glitter spinning in the middle of this invisible gravitational well.

English
  • Originally Aired August 2, 2023
  • Runtime 17 minutes
  • Production Code H6OmgXi1C-I
  • Network YouTube
  • Created August 2, 2023 by
    shriek
  • Modified August 2, 2023 by
    shriek