Episode guide

S5·E2 Mystery of Planet 9

Name: Mystery of Planet 9
Released: 2016-11-29
Duration: 42 min

Episode: Season 5, Episode 2
Air Date: November 29, 2016
Runtime: 42 minutes
Score: 8/10 (2 TMDB votes)
Story Type: Core Character Arc

Core Aired November 29, 2016 42 min ★ 8.0/10 · 2 TMDB votes

Synopsis

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.

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Frequently Asked Questions

When did Season 5 Episode 2 of How the Universe Works air?

Season 5, Episode 2 ('Mystery of Planet 9') originally aired on November 29, 2016.

How long is Season 5 Episode 2 ('Mystery of Planet 9')?

The runtime for this episode is approximately 42 minutes.

What happens in How the Universe Works Season 5 Episode 2?

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....

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