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 ...

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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 ...

Humans have been searching for signs of alien life for many years. From signals from space to potential sightings of unidentified flying objects (UFOs) in the sky, mankind’s curiosity has sought to ...

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 ...

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red sprites. These rare upper-atmosphere lightning phenomena occur high above ...