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The Planets and Beyond

S1 E52017

Planet 9: The Lost World

Episode Synopsis

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.

Next Episodes

Jupiter: King of the Planets

Episode 1

Mars: The Definitive Guide

Episode 2

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3

Venus: The Hell Planet

Episode 3

Saturn: Mysteries Among the Rings

Episode 4

Planet 9: The Lost World

Episode 5

Pluto: The Secret Science

Episode 6

Alien Worlds: Stranger Than Fiction

Episode 7

The Moon: Earth's Guardian Angel

Episode 8

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