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Stephen Hawking Explores Alien Life | Stephen Hawking's Universe

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06:29   |   Nov 22, 2017

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Stephen Hawking Explores Alien Life | Stephen Hawking's Universe
Stephen Hawking Explores Alien Life | Stephen Hawking's Universe thumb Stephen Hawking Explores Alien Life | Stephen Hawking's Universe thumb Stephen Hawking Explores Alien Life | Stephen Hawking's Universe thumb

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Stephen Hawking contemplates what would happen if alien life discovered us.

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