Stephen Hawking's Stark Warning for Humans to Leave Earth - Buxrs.com
Published: 2 years ago By: Smithsonian Channel
By: Smithsonian ChannelPublished: 2 years ago
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In one of his final on-camera appearances, iconic physicist Stephen Hawking issued a warning to humanity about the existential threats we face and how our survival depends on colonizing another planet.
From the Series: Leaving Earth: Or How to Colonize a Planet http://bit.ly/2DqGioQ