The Milky Way contains at least four polluted extraterrestrial civilizations that could invade our planet, a researcher has claimed.
Such as ViceAlberto Caballero, a PhD student at Vigo University in Spain, said he had identified the exact source of the “WoW signal”, which was detected in 1977, and that it was a strange minute-long explosion of radio power.
Mr. Caballero explained that the Big Year Telescope at Ohio State University received a blast of radio waves lasting one minute and 12 seconds. The signal contained an alphanumeric code and was called a “WoW signal”. It has been considered the best candidate signal of extraterrestrial life since people started searching more than 60 years ago.
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Over the decades, researchers have tried to study the signal and its source in more detail. Now, in his research paper – titled “Estimating the Prevalence of Contaminated Extraterrestrial Civilization” – Mr Caballero claims to have identified the exact source of the signal. He believes it originated from a sun-like star 1,800 light-years from Earth.
Mr Caballero’s research is seen as another “thought test”. The researcher said that the aim of his research paper was to alert other scientists and provide a number for civilizations that could probably go back to the messages we send.
To consolidate his study, Mr. Caballero calculated the number of attacks on Earth – including the Wow signal – and then applied it to the approximate number of exoplanets in the Milky Way. According to his calculations, there are four civilizations that can invade our planet. He warned scientists to be careful when using messaging extraterrestrial intelligence (METI) exercises for fear it could provoke an alien attack.
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However, accordinglyNew York Post, Researchers further conclude that the probability of extinction of extraterrestrial human species is almost the same as that of Earth being hit by a “planet-killing asteroid”. In his research paper, Mr. Caballero writes that such events occur once every 100 million years, so people are safe for now.
He added that the Milky Way probably has one of the less harmful extraterrestrial civilizations that has also mastered interstellar travel. Further, the researcher said that as society progresses they are less likely to be involved in conflict, suggesting that an alien force would follow the same behavior as they would advance technologically.
Mr Caballero hopes his research will help start a conversation about whether sending messages into space is really risky. His research comes at a time when the U.S. government is taking the growing signs of extraterrestrial life seriously, although there is still no conclusive evidence.