On August 17th 1977, a strong narrowband radio signal was detected by Dr. Jerry R. Ehman. The signal was discovered by the Big Ear Radio Telescope at Ohio State University. The Signal lasted for a total of 72 seconds and due to its displayed features believed to be of a non-terrestrial origin. Dr Ehman circled the computer printouts of the signal and wrote the comment "Wow !" next to the data. This became the name of the signal. 

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