Are We Alone?
Episode 2 | 54m 41s | Video has closed captioning.
Stephen Hawking sets three volunteers a series of fun challenges to show them how to think like a genius – and find out how likely it is that aliens exist.
Aired: 05/18/16
Expires: 06/30/26
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Genius by Stephen Hawking
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Problems Playing Video? | Closed Captioning
