One of the largest searches for alien intelligence in history is nearing completion, thanks to the help of more than 2 million citizen scientists and the legendary Arecibo Observatory. Launched in ...

For 66 years, we've been listening for alien signals. In that time, we found exactly nothing. But three studies just dropped in the same month that changed the entire conversation. SETI@home recruited ...

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 ...