The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

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

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

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 ...

Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

“Disclosure” has become a cult word. It shouldn’t be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...

New UFO files have been released by the Trump administration that include several vivid descriptions of mysterious sightings ...

Americans "deserve the truth," a U.S. congressman has told a press conference as part of a wider transparency campaign.

Using the SETI Institute’s Allen Telescope Array, a 42-element radio interferometer at Hat Creek Radio Observatory in Hat Creek, California, astronomers probed 3I/ATLAS for artificial radio ...