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Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological self-destruction — and it therefore may not want to talk to us.

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

From E.T. to Disclosure Day, Steven Spielberg is no stranger to the concept of alien life. The irony? He hasn't had one genuine UFO encounter in his entire life.