Giorgio A. Tsoukalos talks about the Alien Astronaut Theory & the new episodes of "Ancient Aliens" on The History Channel.
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Stephen Hawking’s terrifying ‘dark forest’ alien theory ‘more plausible than ever’
The late Professor Stephen Hawking had a chilling "dark forest" theory about alien life 15 years ago – and it could be more plausible than ever. Earlier this year his predictions about aliens ...
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