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Did you Know? We may have previously had contact with aliens.
A volunteer for the Search for Extraterrestrial Intelligence received a 72-second transmission from a distant star system 120 light years away in 1977. Because it was loud and came from an area that no one had ever visited, the gentleman who got it scribbled "Wow!" next to the original printout of the signal. It is still known as the "Wow! Signal." The noise, according to researchers, was picked up by a passing comet.