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5:15
YouTube
NBC News
New study finds potential alien mega-structures known as 'dyson spheres'
A group of researchers have identified at least seven stars that might be surrounded by advanced alien mega-structures known as "dyson spheres." NBC News' Ellison Barber speaks with Janna Levin, a professor of physics and astronomy at Barnard College, about the findings and whether the truth is out there. » Subscribe to NBC News: https://www ...
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