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Wow! is a strong, narrowband radio signal detected on August 15, 1977, by the Big Ear radio telescope affiliated with Ohio State University. The signal’s unique characteristics and one-time nature have made it one of the most intriguing potential candidates for extraterrestrial communication ever recorded. It acquired its name from the note “Wow!” written by astronomer Jerry R. Ehman beside the printout where the signal was observed. Technical Characteristics The Wow! signal was observed for app