Scientists searching for advanced alien civilizations have detected a mysterious signal in data from the world's largest ...

Scientists have detected direct, localized radio emissions from an exoplanet for the very first time. But don't call the Space Force and White House hotline just yet—these signals are not alien ...

Chinese astronomers have detected an unusual radio signal apparently originating from the K2-155 star system, approximately ...

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 ...