How the Universe Works

Season 5 Episode 9: Strangest Alien Worlds

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?

Genre:

Documentary

Seasons:

11

Episodes:

93

Quality:

HD

Status:

Ended

First Air:

2010

IMDb:

8.3