An international team of astronomers has conducted a double-telescopic study of the zone where the Wow! signal originated and failed to detect any signal. In their paper published in Research Notes of the American Astronomical Society, the group describes their study and what they learned from it.

On August 15, 1977, the Big Ear radio telescope on the campus of Ohio State University recorded a 72-second narrowband signal onto a paper tape. Several days later, Jerry Ehman, an astronomer at the university, studied the tape and found the signal so unusual that he scrawled the word Wow! next to the data points.

Since that time, the signal has been discussed at great length in the astronomy community, but nobody has been able to explain its origin. And until now, no one has taken a detailed sur