For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a ...

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

Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

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

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.