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Scientists have discovered a mysterious ninth planet on the very edge of our solar system. Ten times the size of Earth, this strange world could have moons with extraterrestrial life.
First Air Date : Apr 25, 2010
Last Air date : Apr 02, 2023
Episode : 96 Episode
Season : 11 Season
Runtime: 42:14 minutes
Country: United States of America
Cast:
Crew:
