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

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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. "Wow!" signal printout. The comment on the side inspired the event's name. | Credit: Big Ear ...

Some people consider the unexplained Wow! signal as proof of extraterrestrial life. Although this strong multi-band signal from outer space occurred decades ago, there still isn't a commonly accepted ...

On August 15, 1977, a large radio telescope at Ohio State University — which went by its more popular name "The Big Ear" — received a mysterious signal that got immortalized as "the WOW! signal" in ...

In 1977, astronomer Jerry R. Ehman observed a data signal so unique he drew a red circle around it and wrote “Wow!” to emphasize the discovery. The source of the signal was never identified, leading ...

The "Wow!" signal has been etched with a red marker in the memory of advocates for the search for extraterrestrial intelligence (SETI) since its unveiling in 1977. To this day, it remains one of the ...

In August 1977, the Ohio State University Radio Observatory picked up a radio transmission from the Sagittarius constellation that was so strong it inspired the astronomer who discovered it to write ...

This month an astronomer claimed to have debunked a mysterious 1977 radio signal from deep space, but other scientists aren't buying his theory. Eric Mack has been a CNET contributor since 2011. Eric ...

The Wow! alien signal may have come from the constellation Sagittarius. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Researchers may have ...

The story behind the famous "Wow!" signal has an eerie quality that has inspired countless science fiction alien encounters and is often lauded as one of the strongest pieces of evidence that we are, ...