Season 2 · Episode 8 of 15
Aired Aug 7, 2018
Comets: Mysteries from the Deep
Tue, Aug 7, 2018
0 of 15 watched this season
Astronaut Mike Massimino reveals the alien secrets of comets, strange visitors from deep space that might be responsible for life on Earth.
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Airs
Tue, Aug 7, 2018
Show
The Planets
23 episodes
Episode
S2 · E8
in The Planets