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

Seems like Aliens SHOULD Be Out There! Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspa...

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

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