The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

For decades, the search for extraterrestrial intelligence has been guided by one hopeful assumption: somewhere in the galaxy, ...

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

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...

NASA's hunt for alien life may be undermined by its own instruments, according to a group of leading astrobiologists who warn that current tools and mission designs are likely missing subtle, but ...

The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to ...

SETI Institute's radio scans of interstellar comet 3I/ATLAS found no evidence of alien technology, confirming its natural ...

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

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 ...