If alien life exists on exoplanets, how would we know? BBC News

Name: If alien life exists on exoplanets, how would we know? BBC News
Uploaded: 2015-12-15T00:39:16+00:00
Duration: 3 min 35 s
Channel: haberana
Description: Astrophysicist Sara Seager believes she has a way to reveal the biological secrets of a second Earth – watch the video above to see how. Subscribe to BBC

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Astrophysicist Sara Seager believes she has a way to reveal the biological secrets of a second Earth – watch the video above to see how. Subscribe to BBC

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