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Secrets of Pluto and Beyond

New discoveries reveal the secrets of the most distant and mysterious worlds in the solar system. This episode of is a mashup of "How the Universe Works" S05E03 "Secret History of Pluto" and S05E01 "Mystery of Planet 9."

Cast Appearances

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Episode Discussion

tvjjbj12 posted 2 years ago

Retitled, this episode re-aired on 12/17/2018 at 2100 as "Pluto & Beyond: The Alien Mysteries" with a summar of "New findings reveal the secrets of the mysterious worlds at the edge of our solar system."

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