SETI's 1977 "Wow!" signal from deep space was even stronger than originally thought, but its source remains a complete mystery.

A radio signal nearly 9 billion light-years away from Earth was captured in a new recording, detected by India's Giant Metrewave Radio Telescope. McGill University said in a release that this marked ...

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 ...

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 ...

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 ...

Astronomers have detected a radio signal in our galaxy that blares for several minutes at a time, every 21 minutes, and has been doing so for at least 35 years. This bizarre signal doesn’t fit the ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

In Episode 8, while Zosia and Carol are looking through a telescope one night, Zosia explained that The Others have since learned the radio signal came from Kepler-22b.

“The beginning of the long dash indicates exactly 1 o’clock Eastern daylight time.” Millions of Canadians grew accustomed to hearing a version of this daily affirmation on CBC Radio One. The National ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...