How the Universe Works: Season 5 Episode 2
Mystery of Planet 9
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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SD HD Box setSubtitles:
Opensubtitles
5 - 1Most Amazing Discoveries Nov. 22, 2016
5 - 2Mystery of Planet 9 Nov. 29, 2016
5 - 3Black Holes: The Secret Origin Dec. 06, 2016
5 - 4Secret History of Pluto Jan. 03, 2017
5 - 5Stars That Kill Jan. 10, 2017
5 - 6The Universe's Deadliest Jan. 17, 2017
5 - 7Life and Death on the Red Planet Jan. 24, 2017
5 - 8The Dark Matter Enigma Jan. 31, 2017
5 - 9Strangest Alien Worlds Feb. 07, 2017
