It’s been nearly 50 years since astronomers detected the most famous space signal we’ve ever received—a 72-second radio burst that lit up a printout at Ohio State’s Big Ear radio telescope in 1977.

For decades, scientists have scanned the skies, recording an array of radio waves and electromagnetic bursts from deep space. Most have natural explanations, like pulsars, colliding stars, or solar ...

It’s been nearly 50 years since astronomers detected the most famous space signal we’ve ever received—a 72-second radio burst that lit up a printout at Ohio State’s Big Ear radio telescope in 1977.

A new study has re-examined the famous "Wow!" signal, which puzzled generations, finding that it likely was even more intense than previously believed. At the Big Ear radio telescope observatory at ...