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Why can’t we see evidence of alien life? Answers are offered in this TED-Ed video, part of a new educational project. http://t.co/RrRH0VIf


195
195 points

Why can’t we see evidence of alien life? Answers are offered in this TED-Ed video, part of a new educational project. http://t.co/RrRH0VIf


Capt. Xerox