Decoding alien signals 40 years ago

A former US Defense Department analyst has discovered a new mysterious signal believed to be from aliens nearly 40 years ago.

According to Guardian, back in 1977, astronomer Jerry Ehman used the Big Ear telescope of Ohio State University, USA, to search for signals from extraterrestrial civilizations and discover a strange thing. .

While observing the Sagittarii group of stars in Sagittarii (Sagittarius) constellation on August 15, he obtained radio signals from a massive explosion, lasting 72 seconds. Ehman circled it and commented, "Wow!"

Signal "Wow!"is that of aliens or comets still waiting for decoding.(Photo: NAAPO).

Signal analysis shows that it converges outstanding signs of interstellar space . From then on, it became one of the famous SETI cases (searching for extraterrestrial intelligence). However, one cannot observe and record this signal, because it only appears once. It was still a mystery until Antonio Paris, a professor at the University of St. Petersburg, Florida, USA, discovered new.

Before becoming an astronomer at St Petersburg University, he was an analyst with the US Department of Defense.

"I have many years of experience in this field, so I tried to answer the signal 'Wow!'" , He said. Paris explored many astronomical databases to search, as if a detective went back to the crime scene to find the culprit or suspect.

Paris did not find aliens, but discovered two suspicious comets 266P / Christensen and 335P / Gibbs. They were never previously studied because they were discovered only in 2006 and 2008. Paris found that these two comets were in the vicinity of Chi Sagittarii on the day of the signal detection "Wow!"

Paris must check this hypothesis, to identify the signal "Wow!" by two comets or aliens.

266P / Christensen will fly over Chi Sagittarii again on January 25, 2017, and 335P / Gibbs on January 7, 2018. He intended to observe these two events to see if the mysterious signal would reappear. To do this, he set up a fundraising campaign, in order to get $ 13,000 to buy a new radio telescope.