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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 imagined.
First Air Date : Apr 25, 2010
Last Air date : Apr 02, 2023
Episode : 96 Episode
Season : 11 Season
Runtime: 42:14 minutes
Country: United States of America
Cast:
Crew: