Whether you believe intelligent life exists beyond Earth or think every unexplained sighting has a logical explanation, Thursday is a day to celebrate curiosity. World UFO Day, observed each year on ...

Justice Clarence Thomas issued a forceful dissent to the Supreme Court's birthright citizenship ruling, saying it relied on "alternative history." ...

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

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Area 51 is back in the spotlight after a swarm of earthquakes near the Nevada military base. But the real story of Area 51 is ...

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

A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an ...

Astrophysicist Neil deGrasse Tyson has a blunt request for the government as the Pentagon rolls out the highly anticipated UFO files — just “show the alien!” Tyson shared his two cents Monday on “The ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

Interstellar comet 3I/Atlas, now heading back into deep space, showed no evidence of alien technology after extensive radio observations by SETI researchers. Astrobiology Web SETI scanned 3I/Atlas for ...

Half a century after "Close Encounters of the Third Kind," the director returns to the subject of UFOs with "Disclosure Day." His science fiction films are informed by his fascination with alien encou ...

Last summer, a NASA-funded asteroid impact warning system detected a mysterious object speeding through the solar system. Scientists determined the object had entered the solar system from deep space, ...