Playback serverIf a title won’t play, switch servers.
The Planets and Beyond
Season 2 · Episode 8
Comets: Mysteries from the Deep
0.043mAugust 7, 2018
Astronaut Mike Massimino reveals the alien secrets of comets, strange visitors from deep space that might be responsible for life on Earth.
Episodes
- Episode 1Earth: The Secret History
- Episode 2Alien Planets: Cosmic Nightmares
- Episode 3Milky Way: The Monster Inside
- Episode 4Ends of the Solar System: Strange Frontiers
- Episode 5Ice Giants: The Frozen Aliens
- Episode 6Alien Galaxies: The Strange Secrets
- Episode 7Mercury: The Cursed Planet
- Episode 8Comets: Mysteries from the Deep
- Episode 9The Sun: Secrets of Our Star
- Episode 10The Solar System: Alien Origins
- Episode 11Dwarf Planets: Aliens Among Us
- Episode 12Alien Stars: Mystery of the Monsters
- Episode 13Alien Volcanoes: Life in Hell
- Episode 14Alien Moons: The Next Earth
- Episode 15Alien Oceans: Search for Life