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Season 7 Episode 1 | 9m 44s
If we lived light years from Earth, how would we know there’s life here? Let’s take a look at the search for extraterrestrial life on habitable exoplanets, and discover what biosignatures would show someone else that we’re here.
Aired: 02/08/19
Video has closed captioning.
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If we lived light years from Earth, how would we know there’s life here?
