The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist ...

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

NASA spacecraft observed the celestial iceball as it swung past Mars last October, venturing within 19 million miles ...

A UFO whistleblower has named a declassified report that he said shows the CIA's involvement with extraterrestrial technology ...

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Fresh allegations that US intelligence agencies may be secretly holding recovered alien technology have revived one of ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

Aliens stars say James Cameron’s ideas for the sci-fi classic were years ahead of their time, from weapon rigs to tiny ...