Strangest Alien Worlds How the Universe Works : Season 5 Episode 9
TV-PG Science 1h 00m
Aired: February 7th, 2017 @ 9:00 PM EST on Science
Discoveries of new planets have revealed countless worlds much stranger than Earth. Some of these worlds don't have stars, others are made out of diamonds. Will we ever find a planet like Earth, or are these distant worlds stranger than fiction?
