3I/ATLAS Mystery: Why Harvard Scientist Fears Humanity Is Unprepared For Alien Invasion

Harvard's Avi Loeb warns interstellar comet 3I/ATLAS could be alien tech. Experts weigh in on planetary defence and the risks ...
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6 U.S. Presidents Who Were Totally Obsessed with UFOs

Presidential curiosity isn't always about diplomacy or the economy—sometimes, it's about what might be flying overhead. Across decades and party lines, several U.S. presidents have displayed a ...