There’s no *69 option for this long-distance call. A newly discovered, yet still mysterious radio signal from the far reaches of space that repeats itself hourly is perplexing scientists. The ...

A team of astronomers in Australia searching for radio flashes from distant galaxies has found something a lot closer to home. The defunct communications satellite Relay 2, out of commission since ...

The universe is awash with strange radio signals, but astronomers have now detected a really bizarre one that repeats every hour, cycling through three different states. While they have some ideas ...

A radio signal 9 billion light-years away from Earth has been captured in a record-breaking recording, Space.com said Friday. The signal was detected by a unique wavelength known as a “21-centimeter ...

Credit: Big Ear Radio Observatory and North American AstroPhysical Observatory (NAAPO). The Wow! Signal has captivated the imagination of scientists and the public alike since its detection in 1977.

Scientists at an Australian observatory have been studying a radio signal that appears to originate in Proxima Centauri, the star closest to the sun, to see if it may be a sign of intelligent life. A ...

A mysterious NASA radio signal from 2006 continues to puzzle scientists.

Astronomers have spotted a mysterious radio signal relatively close to Earth that is behaving unlike anything observed before. The low-frequency radio signal, located around 4,000 light-years away ...

Astronomers have discovered a bizarre radio signal coming from somewhere in our galaxy that can’t be explained by any known object. When it’s active the source gives off energetic radio bursts lasting ...

A spooky radio signal showed up after a radio telescope was aimed at the next star over from our sun. By Dennis Overbye Nobody believes it was ET phoning, but radio astronomers admit they don’t have ...