Season 2 Episodes8
Cast1

Erik Dellums
Himself - Narrator
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Ranked #2 of 8 in Season 2•+0.1 vs season avg
As time machines from the early universe, comets could hold the key to unlock the secrets of the cosmos, and may even be the origin of life itself. In this episode, we learn that comets are even more mysterious and fascinating than we had ever

Erik Dellums
Himself - Narrator
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"Comets - Frozen Wanderers" is episode 6 of How the Universe Works season 2. It scored 8.2/10 from 111 votes, ranking #2 of 8 episodes this season (season average 8.1). It aired on August 15, 2012.