Pbs Space Time
@pbsspacetime·3.5M subscribers·445 videos
Is It Irrational to Believe in Aliens?
Posted
February 18, 2015
Views
852,623
Likes
14,413
Comments
3,991
Engagement
2.16%
February 18, 2015
852,623
14,413
3,991
2.16%
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Aliens! Could humans really be alone in this expansive universe? And if we're not, how come we've never made contact with other intelligent life? Everyone's thought about it; especially members of the scientific community. Join Gabe as he presents some of the most popular theories that scientists use to rationalize their support or skepticism of the existence of aliens. We may never know the answer to this age old question, but a little scientific thinking never hurt anybody!
Extra Credit:
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Comments:
D. Moritz
Gaëtan DO VAN LANH via Google+
The Gentleman Physicist
Nicholas Feeley
James Morgan
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