Astrophysicist Neil deGrasse Tyson has backed former President Barack Obama after he suggested extraterrestrial life exists.
Neil deGrasse Tyson, who for years has laughed off and shot down questions about UAP and aliens, is ready to talk at length about the phenomenon - and wants to see some real proof after the latest ...
Astrophysicist Neil deGrasse Tyson speaks with CNN's Dana Bash about "never-before-seen files" on UFOs released by the FBI ...
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