Scientists have updated global guidelines for announcing possible evidence of intelligent alien life, aiming to prevent ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

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

Experts emphasize transparency and caution in sharing potential extraterrestrial signals, aiming to prevent misinformation, ...

If it were a phone call, we might call it a butt dial: A strong radio signal that set off questions about whether it emanated from an advanced alien race earlier this week is now believed to have come ...

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 ...

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 ...

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