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Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

Steven Spielberg ’s return to alien science fiction with Disclosure Day feels less like a comeback and more like a continuation of a long conversation he helped define. His films have treated ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet as it ever will.

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...

A group of researchers say it's time for academia to get serious about studying UFOs. The movement, championed by the Society for UAP Studies, is wrapping up an international conference aimed at ...