| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S02E01 | Earth: The Secret History |
March 20, 2018
Science Channel
|
45 | |
| S02E02 | Alien Planets: Cosmic Nightmares |
March 27, 2018
Science Channel
|
45 | |
| S02E03 | Milky Way: The Monster Inside |
April 3, 2018
Science Channel
|
45 | |
| S02E04 | Ends of the Solar System: Strange Frontiers |
April 10, 2018
Science Channel
|
45 | |
| S02E05 | Ice Giants: The Frozen Aliens |
April 17, 2018
Science Channel
|
45 | |
| S02E06 | Alien Galaxies: The Strange Secrets |
July 24, 2018
Science Channel
|
45 | |
| S02E07 | Mercury: The Cursed Planet |
July 31, 2018
Science Channel
|
45 | |
| S02E08 | Comets: Mysteries from the Deep |
August 7, 2018
Science Channel
|
45 | |
| S02E09 | The Sun: Secrets of Our Star |
August 14, 2018
Science Channel
|
45 | |
| S02E10 | The Solar System: Alien Origins |
August 21, 2018
Science Channel
|
45 | |
| S02E11 | Dwarf Planets: Aliens Among Us |
August 28, 2018
Science Channel
|
45 | |
| S02E12 | Alien Stars: Mystery of the Monsters |
September 4, 2018
Science Channel
|
45 | |
| S02E13 | Alien Volcanoes: Life in Hell |
September 11, 2018
Science Channel
|
45 | |
| S02E14 | Alien Moons: The Next Earth |
September 18, 2018
Science Channel
|
45 | |
| S02E15 |
Alien Oceans: Search for Life
series finale
|
September 25, 2018
Science Channel
|
45 |
No artwork of this type.
No artwork of this type.