In 1977, radio astronomers at Ohio State University’s Big Ear telescope in western Ohio picked up a remarkably intense radio signal from deep space. It came from something exceptionally bright and ...

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest exoplanets, Proxima Centauri b. What conditions make this planet a candidate for ...