Observations with the Allen Telescope Array set new limits on possible signals from extraterrestrial transmitters.

NASA spacecraft observed the celestial iceball as it swung past Mars last October, venturing within 19 million miles ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

The SETI Institute, the nonprofit that conducts a search for extraterrestrial intelligence by examining radio waves for artefacts that are unlikely to be the result of natural processes, thinks it may ...

The recent, widely covered signal that's allegedly got SETI hot and bothered is almost certainly not aliens. But that doesn't mean it's not cool. Share on Facebook (opens in a new window) Share on X ...

Scientists may have discovered how extraterrestrial civilizations could actually detect and find Earth.

This month at the SETI Institute brought exciting news about research and innovations that expand our understanding of the universe and bring us closer to answering one of humanity’s most enduring ...

Scientists hunting for radio signals from any form of advanced extraterrestrial life that might be out there trying to contact us are now starting to wonder if something has been messing with their ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...