What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past?

IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

A meteor streaked across Cleveland, causing a sonic boom and sparking humorous alien jokes. NASA confirms the meteor ...

President Donald Trump says he is directing federal agencies to declassify UFO files. For traders betting on aliens, that could mean a very earthly payday. "Based on the tremendous interest shown, I ...

Movies like "Disclosure Day" and "Project Hail Mary" renew our fascination with extraterrestrials and the idea that humankind ...

In this video, Kobi Brown presents three promising solutions to the Fermi Paradox and addresses a common misunderstanding that may unlock the mystery of extraterrestrial life: Where is everybody? Key ...

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

The images that recently have gone viral actually date back to 2001.

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

Renewed attention is falling on the base after the disappearance of retired Air Force Maj. Gen. William Neil McCasland, a ...

New geological analysis of river sands near Stonehenge has debunked the long-held theory that Ice Age glaciers transported the monument's massive stones. Scientists found no evidence of distant rocks ...