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Why Haven't We Found Alien Life? | Space Time | PBS Digital Studios

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Seems like Aliens SHOULD Be Out There!

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With millions of Earth like planets around sun like stars in our galaxy alone, why don't we see intelligent alien life? Or any other life for that matter? It gets especially weird when you factor in new scientific revelations that life on Earth occurred crazy fast! So if you want to help us theorize on the real reasons we haven't found alien life, you should watch today's episode of Space Time!

Is It Irrational to Believe in Aliens
https://www.youtube.com/watch?v=XAU9o...

5 Real Possibilities for Interstellar Travel
https://www.youtube.com/watch?v=EzZGP...

Comments:
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Ray Vertti
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solution 99x
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References:
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On The History and Future of Cosmic Planet Formation
Behroozi & Peeples 2015, http://arxiv.org/abs/1508.01202 http://www.nasa.gov/feature/goddard/m...

Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon
Bell et al. 2015
http://www.pnas.org/content/early/201...

posted by Gladkovjp