For researchers seeking answers to the question of whether we are alone in the universe, one event nearly half a century ago lingers even today — the so-called "Wow! Signal" detected back in 1977.

An unusually bright burst of radio waves—dubbed the Wow! signal—discovered in the 1970s has baffled astronomers ever since, given the tantalizing possibility that it just might be from an alien ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

It’s not every day that the excitement of a scientist makes its way into the history books right alongside their discovery. But that is exactly what happened with one particular finding known as the ...

In 1977, astronomers received a powerful, peculiar radio signal from the direction of the constellation Sagittarius. Its frequency was the same as neutral hydrogen, and astronomers had speculated that ...

On August 15, 1977, the Big Ear observatory in Ohio picked up an unusually intense radio signal. The signal was so unique that it prompted astronomer Jerry Ehman to draw a red circle around it and ...

As far as interesting problems go, few can really compete with the perennial question: “Are we alone?” The need to know if there are other forms of intelligent life out there in the galaxy is deeply ...

Are we alone? For a moment on August 15, 1977, it certainly looked like the answer might be no. That night the Big Ear radio observatory at the Ohio State University was blasted by a remarkably ...