The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

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

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Most of the AI conversation stops at AGI, human-level artificial general intelligence, as if reaching it were the finish line. A new Google DeepMind report starts where that conversation ends. Titled ...

For decades, the question of whether life exists beyond Earth has been the domain of science fiction writers and late-night ...

Karl Jansky had just graduated from college as a radio engineer when he began work at the famed Bell Telephone Laboratories in 1928. Bell had built a transatlantic phone capability, but the system had ...

A polarizing Harvard astronomer has been appointed to lead a White House panel studying UFOs. Avi Loeb is leading a new ...