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

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

Astronomers have spotted a planet orbiting a star in our neighborhood of the Milky Way galaxy that presents a unique ...

A compound your body makes after drinking caffeine is now appearing in drinks. But scientists are still studying how safe and ...

New research shows many people vastly underestimate other people's beliefs in extraterrestrial life. Is social stigma keeping ...

One of the consultants on Close Encounters was Dr. J. Allen Hynek, the head of an Air Force investigation called Project Blue ...