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on January 4, 2019 8 views

The universe is approximately 13.8 billion years old. In all that time, one would think that at some point there has to have been at least one alien civilization in all that time. But astronomer Stephen Webb thinks we're all alone. In this TED talk, Webb explains his theory that there's nothing out there in the vast ocean of the universe.

Why #Aliens Are So #HardtoFind

Categories: Tech & Science
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