The Wow! signal was a strong narrow-band radio signal detected by Jerry R. Ehman on August 15, 1977, while he was working on a SETI project at the "Big Ear radio telescope" of The Ohio State University, then located at Ohio Wesleyan University's Perkins Observatory in Delaware, Ohio. The signal bore the expected hallmarks of non-terrestrial and non-Solar System origin. It lasted for the full 72 seconds duration that "Big Ear" observed it, but has not been detected again. The signal has been the subject of significant media attention.
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