Between biosignatures and technosignatures lie noosignatures, and some scientists think they could help us find alien life someday.

Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

For decades, the search for extraterrestrial intelligence has been defined more by silence than discovery, but that balance may be starting to shift. As new telescopes, algorithms, and theoretical ...

For generations, the search for life beyond Earth has focused on avoiding one of science's biggest mistakes: claiming a discovery that turns out not to be real. Researchers have built entire ...

The alien mothership makes contact with Earth in this scene from ‘Close Encounters of the Third Kind.’ Columbia Pictures Amy Adams attempts to communicate with a cephalopod-like, seven-limbed alien ...