Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

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

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

Do little green men exist? Was 'Men In Black' a documentary? Prediction markets are pricing the probability of a U.S. government confirmation of alien life before the year 2027. Find out why traders ...