Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

From flying saucer sightings to an Air Force-funded study at CU Boulder, the city played an unexpected role in America's UFO ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

Efrem Rigotti actually just wanted to find his car keys. Instead, he came across a mysterious object. Now it's clear: it's from outer space.

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

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

Steven Spielberg's new blockbuster coincides with real-world disclosures about the government's investigation of unidentified ...

Steven Spielberg's claims of alien visits to Earth spark debate among scientists, who stress the lack of credible evidence ...

There's no conclusive evidence of alien life or government cover-ups. But the files released Friday by the Pentagon reveal ...