The “post-detection protocols” for announcing the discovery and existence of alien life have just had their first major ...

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

Scientists have searched one of the only known visitors to us from another solar system for signs of alien technology – and ...

An ocean world that's teeming with microbes — and who knows what other kinds of life — is currently the best explanation for some chemical signatures that the James Webb Space Telescope has spotted in ...

There were no 'technosignatures' from comet 3I/ATLAS, the third known object from a faraway star The group leading the charge ...