| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S2018E01 | How to Be a Hero |
January 9, 2018
|
60 | |
| S2018E02 | The Voice in Your Head - A Tribute to Joe Frank2 |
January 23, 2018
|
60 | |
| S2018E03 | Ghosts of Football Past |
February 3, 2018
|
60 | |
| S2018E04 | Smarty Plants |
February 14, 2018
|
60 | |
| S2018E05 | The Curious Case of the Russian Flash Mob at the West Palm Beach Cheesecake Factory |
February 20, 2018
|
60 | |
| S2018E06 | Rippin’ the Rainbow an Even Newer One |
March 15, 2018
|
60 | |
| S2018E07 | Border Trilogy Part 1: Hole in the Fence |
March 23, 2018
|
60 | |
| S2018E08 | Border Trilogy Part 2: Hold the Line |
April 6, 2018
|
60 | |
| S2018E09 | Border Trilogy Part 3: What Remains |
April 20, 2018
|
60 | |
| S2018E10 | Dark Side of the Earth |
April 26, 2018
|
60 | |
| S2018E11 | More or Less Human |
May 17, 2018
|
60 | |
| S2018E12 | Unraveling Bolero |
May 22, 2018
|
60 | |
| S2018E13 | Poison Control |
June 1, 2018
|
60 | |
| S2018E14 | Birthstory |
June 7, 2018
|
60 | |
| S2018E15 | Gonads: The Primordial Journey |
June 15, 2018
|
60 | |
| S2018E16 | Gonads: Fronads |
June 23, 2018
|
60 | |
| S2018E17 | Gonads: X & Y |
June 30, 2018
|
60 | |
| S2018E18 | Gonads: Dutee |
July 22, 2018
|
60 | |
| S2018E19 | Gonads: Dana |
July 22, 2018
|
60 | |
| S2018E20 | Gonads: Sex Ed |
July 27, 2018
|
60 | |
| S2018E21 | The Bad Show |
July 27, 2018
|
60 | |
| S2018E22 | Post No Evil |
August 17, 2018
|
60 | |
| S2018E23 | Baby Blue Blood Drive |
August 29, 2018
|
60 | |
| S2018E24 | 27: The Most Perfect Album |
September 18, 2018
|
60 | |
| S2018E25 | Infective Heredity |
September 21, 2018
|
60 | |
| S2018E26 | Breaking Bad News Bears |
September 28, 2018
|
60 | |
| S2018E27 | In the No Part 1 |
October 11, 2018
|
60 | |
| S2018E28 | In the No Part 2 |
October 19, 2018
|
60 | |
| S2018E29 | In the No Part 3 |
October 25, 2018
|
60 | |
| S2018E30 | War of the Worlds |
October 30, 2018
|
60 | |
| S2018E31 | Tweak the Vote |
November 5, 2018
|
60 | |
| S2018E32 | UnErased: Dr. Davison and the Gay Cure |
November 22, 2018
|
60 | |
| S2018E33 | UnErased: Smid |
November 27, 2018
|
60 | |
| S2018E34 | Apologetical |
December 21, 2018
|
60 | |
| S2018E35 | A Clockwork Miracle |
December 27, 2018
|
60 | |
| S2018E36 |
BONUS: Radiolab Scavenger Hunt
season finale
|
December 28, 2018
|
60 |
No artwork of this type.
No artwork of this type.
No artwork of this type.