Alien 'Wow!' Signal Could Be Explained After Almost 40 Years (theguardian.com)

An anonymous reader cites a report on The Guardian: A former analyst with the US Department of Defence is on the trail of a 'cold case' -- an unexplained signal that some believe could have come from extraterrestrials. Way back in 1977 something amazing happened. Astronomer Jerry Ehman was using the Ohio State University's Big Ear radio telescope to sweep the sky for possible signals from extraterrestrial civilisations. He found something. While pointing towards a grouping of stars called Chi Sagittarii on 15 August, he received a powerful blast of radio waves that lasted for 72 seconds. He circled it on the readout and wrote: "Wow!" Analysis of the signal showed that it displayed all the hallmarks of coming from interstellar space, and it became something of a cause celebre for those involved in SETI, the search for extraterrestrial intelligence. The trouble is that despite numerous attempts, the signal has never been observed again and so remains unexplained. Until now perhaps, thanks to the work of Professor Antonio Paris of St Petersburg College, Florida. Known as 266P/Christensen and 335P/Gibbs, they have never been investigated before because they were only discovered in 2006 and 2008 respectively. Paris found that they were both in the vicinity of Chi Sagittarii on the day that the 'Wow!' signal was detected. This could be significant because comets are surrounded by clouds of hydrogen gas that are millions of kilometres in diameter. Comet 266P/Christensen will pass the Chi Sagittarii star group again on 25 January 2017, while 335P/Gibbs will make its passage on 7 January 2018. Paris plans to observe these events to look for a recurrence of the mystery signal.In some other news, cosmologist and theoretical physicist, Stephen Hawking says he doesn't expect the humanity to find intelligent alien life for at least another 20 years.

Comments

Jerry Ehman

[Jodka]

When I was about 7 years old Jerry Ehman rode down to Kentucky with us in the family station wagon from Powell, Ohio to Kentucky to go spelunking. We lived a few houses down the street from the assistant director of the Big Ear radio observatory who organized the trip and who invited along coworkers and friends. All the radio observatory guys on the trip were full-time radio geeks, including Jerry, who brought his own CB radio on the trip and installed it in our car before we left. This was so we could keep in touch with the other vehicles on the drive down. Jerry had temporarily disconnected our am/fm car radio antenna to wire in his CB. So he is explaining this to me as my father drives down the highway to Kentucky. Being 7, of course I asked "but what if we want to listen to the radio?". Jerry, who was riding in the center of the front bench seat of the station wagon, replies that he can switch back and forth between them. Then he immediately inverts himself in the car seat with his feet up in the air and his head pushed up under the dashboard holding a handful of tools. A few minutes later the car radio is working again.

By the way, the radio observatory at which Jerry recorded the Wow! signal no longer exits. It was a joint project between Ohio State and Ohio Wesleyan universities. It was constructed and managed by the Ohio State University but located on land owned by Ohio Wesleyan University which sold it to developers to build a golf source. There was an international effort to preserve it, Nobel price winners and other notables campaigned for it. Wesleyan believed that a golf course was much more important than SETI. "Ignorant small-town hicks" would not go far enough to describe that school.