These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

A lunar far side experiment finds no alien signals but proves the Moon could offer the quietest listening post yet for future ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Turbulent star environments may broaden alien radio signals, making them harder for SETI to detect. (CREDIT: Shutterstock) Radio ...

Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met ...

A planet's radio signal may begin as a sharp tone (left, white) but can be spread out by the star'[s surroundings plasma winds into a wider, fainter signal (right, green). The study suggests we may be ...