From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes ...

“Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of extraterrestrials should be revealed.

But the reviews for ‘Disclosure Day’ among the experts on UAPs—unidentified aerial phenomena—are decidedly mixed.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

A Harvard University professor known for his polarizing theories about extraterrestrial life has been tapped by the White ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Disclosure Day treats extraterrestrial life as a challenge to faith. It’s not.

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

Add Yahoo as a preferred source to see more of our stories on Google. Even as the Trump administration continues to declassify government files on UFO sightings, the official position of the United ...