Scientists have discovered a new species of flatworm, the deepest free-living one ever recorded, in the Pacific Ocean's Kuril ...

"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 ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an alien spaceship.

Harvard astronomer Avi Loeb, famed and criticized for alien theories, will lead a Trump-era outside science team probing UAP ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it appeared in July 2025.

From the Navy’s infamous Tic-Tac encounter to thousands of recent reports, believers say some of the strangest UFOs may be hiding underwater.

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg ...