| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Lance Armstrong |
October 1, 2017
National Geographic
|
45 | |
| S04E02 | Kareem Abdul-Jabbar |
October 8, 2017
National Geographic
|
45 | |
| S04E03 | Jane Goodall |
October 15, 2017
National Geographic
|
45 | |
| S04E04 | Katie Couric |
October 22, 2017
National Geographic
|
45 | |
| S04E05 | Kevin Smith |
October 29, 2017
National Geographic
|
45 | |
| S04E06 | SciFi Meets National Defense |
November 5, 2017
National Geographic
|
45 | |
| S04E07 | Katy Perry |
November 12, 2017
National Geographic
|
45 | |
| S04E08 | Sylvia Earle, Fabien Cousteau & Adrian Grenier |
November 19, 2017
National Geographic
|
45 | |
| S04E09 | James Cameron |
November 26, 2017
National Geographic
|
45 | |
| S04E10 | Celestial Navigation |
December 3, 2017
National Geographic
|
45 | |
| S04E11 | Salman Rushdie |
December 10, 2017
National Geographic
|
45 | |
| S04E12 | Interstellar Space Travel |
December 17, 2017
National Geographic
|
45 | |
| S04E13 | Alan Alda |
January 7, 2018
National Geographic
|
45 | |
| S04E14 | Stephen Colbert |
January 14, 2018
National Geographic
|
45 | |
| S04E15 | True Story of Hidden Figures |
January 21, 2018
National Geographic
|
45 | |
| S04E16 | Sam Harris and the Science of Belief |
January 28, 2018
National Geographic
|
45 | |
| S04E17 | Frank Oz and the Science of Puppeteering |
February 4, 2018
National Geographic
|
45 | |
| S04E18 | Kelly Slater and the Science of Surfing |
February 18, 2018
National Geographic
|
45 | |
| S04E19 | Astronaut Scott Kelly |
February 25, 2018
National Geographic
|
45 | |
| S04E20 |
Stephen Hawking
season finale
|
March 4, 2018
National Geographic
|
45 |
No artwork of this type.
No artwork of this type.
No artwork of this type.