Radio telescopes have long scanned quiet patches of sky for a lone, artificial-sounding ping, but a growing body of research ...

A comet from another star system is sweeping through our cosmic backyard and, for the first time, astronomers have picked up ...

A cosmic particle detector in Antarctica has detected a series of bizarre signals that defy the current understanding of particle physics, according to an international research group that includes ...

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 ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...