To support alien life, a planet doesn’t have to be exactly like Earth, but it does need a few key ingredients. First, it ...

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help ...

Tardigrades, commonly known as water bears, may be better suited by a new name: Tardiguardians of the Galaxy. Unlike the ...

There were schools of thought in Ancient Greece that speculated about extraterrestrial life, in trying to answer questions ...

Scientists continue to look for signs of alien life on Mars, but this scientist truly popularized the idea, claiming to find ...

A new paper suggests that BARSOOM may have been alive on the planet, and was killed in the Viking experiments.

With Area 51 ruled out by President Obama, where might aliens really be hiding? Scientists have now revealed the best candidates.

In a Truth Social post, the U.S. president said his move was based on the "tremendous interest" in the subject, without providing additional details.

If life ever existed on Mars, it might have looked like microfossils right here on Earth.