Explore the darkest corners of the abyss with 18 terrifying creatures found at the bottom of the ocean. These are Earth's ...

The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, ...

Trump administration quietly registers Aliens.gov amid renewed interest in UFO records.

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

Fossils found in Niger belong to a newly identified Spinosaurus species that had a dramatic skull crest and likely hunted fish by wading, researchers reported.

Viewing volcanoes, snorkeling with manta rays, taking ghost tours and more are Hawaii experiences best enjoyed after dark.

Wright-Patterson has played a central role in the US military’s real investigations into mysterious objects in the sky — from Cold War-era research programs to efforts to study what the government now ...

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

The disappearance of retired Air Force Maj. Gen. William “Neil” McCasland has drawn the FBI into the search and sparked a surge of online conspiracy theories.

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 ...

Streetlights shaped like alien heads line the roads of Roswell, New Mexico, where murals of flying saucers streak across storefronts and tourists pose beside statues of little green men. Related video ...