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How the Universe Works S5E9 — Strangest Alien Worlds
How the Universe Works•Season 5•Episode 9

Strangest Alien Worlds

Feb 7, 201742 min
Discussion

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?

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Episode Summary

"Strangest Alien Worlds" is episode 9 of How the Universe Works season 5. It aired on February 7, 2017.

Continue to Season 6Best of Season 5