Sometimes space mysteries are explained sometimes they go on "I did not ever think the signal would cause such excitement," he said. Smith said he was excited but also skeptical, thinking there was a simple explanation. "But after a while I started thinking, this is exactly the kind of signal we're looking for." "My first thought was that it must be interference," he told Nature. Smith, who was working as a research intern with Breakthrough Listen, told his supervisor, University of California, Berkeley, astronomer Danny Price, who posted it to the Breakthrough Listen Slack channel. That's when Shane Smith, an undergraduate at Hillsdale College in Michigan, discovered the signal while sifting through data collected from Parkes. But it went unnoticed until the following year.
The 2019 signal was detected by the radio telescope as it spent 26 hours listening in the region of Proxima Centauri. The Two-Way In A Far-Off Galaxy, A Clue To What's Causing Strange Bursts Of Radio Waves "That's something that you expect from things that are actually in space," he says, because the Earth's spin causes a Doppler shift in the frequency. However, the signal didn't stay at the same frequency - it drifted, Wright says. That alone is not surprising, he says, because there are lots of easily identifiable human-made signals that need to be sifted out all the time. It was at one specific frequency, whereas natural signals always show up over a range of frequencies. It had clear signs of being produced by technology, he says. I mean, it's the first time in years that they've seen something like this," Wright says. The Wow signal was a strong narrowband radio signal detected on August 15, 1977, by Ohio State Universitys Big Ear radio telescope in the United States, then used to support the search for extraterrestrial intelligence. "This signal mimicked exactly what it is they were trying to find. In August 1977, scientists at Ohio State University’s Big Ear radio telescope detected a 72-second signal from space that was extremely difficult to explain. But the researchers eliminated that possibility - there were no aircraft in the area. The signal, which lasted about five hours at 982 megahertz, was at a frequency normally reserved for aircraft communications. One of the strangest incidents came in 1977 when an unexpected radio signal was detected which some believed could have been sent from an alien civilisation. "This was a really pernicious signal," Jason Wright, a professor of astronomy and astrophysics who is director of the Penn State Extraterrestrial Intelligence Center, tells NPR. How the search shifted from the stars back to Earth
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