Harvard's Avi Loeb warns interstellar comet 3I/ATLAS could be alien tech. Experts weigh in on planetary defence and the risks ...
Alien spaceships are in a league of their own, though. Earth does have a force field that could make a spacecraft landing ...
The night was warm and muggy over New Castle Air Force Base in Delaware, the kind of heat that clung to the metal skins of ...
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