Season 1 Episodes8
Cast1

Mike Rowe
Himself - Narrator
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Ranked #8 of 8 in Season 1•−0.2 vs season avg
Is our solar system unique? Since the first discovery of a planet orbiting another star, some 280 alien solar systems have been identified. It's only by looking at solar systems far beyond our own, that we can understand how remarkable our universe is.

Mike Rowe
Himself - Narrator
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"Solar Systems" is episode 7 of How the Universe Works season 1. It scored 8.1/10 from 172 votes, ranking #8 of 8 episodes this season (season average 8.3). It aired on May 24, 2010.