The Planets and Beyond Season 1 Episode 5 Planet 9: The Lost World 2017
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Astronaut Mike Massimino investigates the possibility of a giant ninth planet at the edge of the solar system; using the latest technology, he reveals the incredible secrets of this mysterious world.
- Released: 2017-09-19
- Runtime: 43 minutes
- Genre: Documentary
- Stars: Michael J. Massimino
- Director:
