When did The Planets and Beyond Season 2 Episode 8 air?
The Planets and Beyond Season 2 Episode 8 aired on August 7, 2018.


The story of the discovery and exploration of the planets, revealing the deepest secrets of our neighbors in space.

Astronaut Mike Massimino reveals the alien secrets of comets, strange visitors from deep space that might be responsible for life on Earth.
Direct answers for episode-level questions and details.
The Planets and Beyond Season 2 Episode 8 aired on August 7, 2018.
This episode runs for approximately 43 minutes.
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