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 ...

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and 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 ...

No bombshells so far in the latest Pentagon batch of declassified Unidentified Anomalous Phenomena files. But they show the CIA hid its involvement.

Los Angeles — Obsession is maybe too hard-edged; interest too soft. But from "Close Encounters of the Third Kind" and "E.T" to his new sci-fi thriller "Disclosure Day," Steven Spielberg has spent ...

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 ...

Anthony Salvanto, Ph.D., is CBS News' executive director of elections and surveys. He oversees the CBS News Poll and all surveys across topics and heads the CBS News Decision Desk that estimates ...

Obsession is maybe too hard-edged; interest too soft. But from “Close Encounters of the Third Kind” and “E.T” to his new sci-fi thriller “Disclosure Day,” Steven Spielberg has spent nearly the entire ...