The Planets and Beyond S1E5 backdrop
The Planets and Beyond poster

The Planets and Beyond (2017)

S1E5 Planet 9: The Lost World

Sep 19, 2017 Season 1 Episode 5 Documentary

Astronaut Mike Massimino explores the intriguing idea of a massive ninth planet lurking at the far reaches of our solar system. Employing cutting-edge technology, he uncovers astonishing secrets about this enigmatic celestial body.

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