Astrophysicist and science communicator Neil deGrasse Tyson spills on his obsession with aliens and the best and worst Hollywood depictions of them.
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When aliens come visiting... AI robots, not real beings, will threaten our existence, scientist says
Harvard professor Avi Loeb believes that aliens are not going to visit Earth in physical form, and would instead send a "technological device guided by AI". Their visit would not be fun either, and ...
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