Trump wrote no caption to shed light on the meaning of the image, triggering speculation online.

“The way I see it, there’s nothing to fear,” said former President Jimmy Carter, who once reported seeing a UFO. “If there is ...

A new documentary claims the US government has hidden evidence of UFOs and alien life for decades, with insiders alleging a ...

The buzz started in a hay meadow at the foot of a mysterious-looking geological formation. Helicopters and trailers arrived ...

For centuries, stargazers of many kinds have debated the meaning of unidentified objects in the heavens and encounters with mysterious beings on earth.

An exhibit in Portsmouth is taking visitors inside the incredible lives of Betty and Barney Hill.

We'll give you one guess what he blames them ...

Neil deGrasse Tyson has had a lifelong fantasy of being abducted by aliens. That’s right, he actually wants to be taken.

For centuries, stargazers of many kinds have debated the meaning of unidentified objects in the heavens and encounters with mysterious beings on earth.

The US has recovered four distinct species of extraterrestrial life from crashed UFOs, a former CIA-funded government ...

On May 8, the Pentagon released its first tranche of "UFO files." Space.com reached out to experts to make sense of this ...