Origins: Where are the Aliens?

Passport Season 31 Episode 13 | 53m 31s Video has closed captioning.

Journey back to the beginning of everything: the universe, Earth, and life itself.

Aired: 09/28/04

Rating: NR

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Problems Playing Video? | Closed Captioning

Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Original funding provided by Microsoft, Sprint, the Park Foundation, the National Science Foundation, ...