It's almost certainly not an extraterrestrial telegram. But waves that seemed to come from the vicinity of Proxima Centauri ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

Estimating the chance of getting a message from life beyond Earth, say within the next decade, isn’t easy. Even the best experts are reluctant to offer precise odds. “Anybody who gave you a figure ...

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

In 1977, astronomers detected a powerful, narrowband radio signal that appeared to come from deep space. It lasted just 72 ...

A mystery " alien " signal from outer space has been tracked down to its source. First discovered in 2007, fast radio bursts, or FRBs, last only a millisecond and can carry an enormous amount of ...

On August 15, 1977, the Big Ear Radio Telescope in Delaware, Ohio, received the most powerful signal it would ever detect during its decades of observations. The signal lasted just 72 seconds, but ...