The radio signal captured the world's attention in 1977, when astronomers working with the Big Ear Radio Telescope - at the time in Deleware, Ohio - recorded a unusually strong 72-second signal from somewhere in space. It may have lasted longer than 72 seconds, but that was the maximum amount of time the Big Ear radio telescope could observe. Now amateur astronomer Alberto Caballero claims that the most likely candidate for the source of the signal is a planet orbiting the star 2MASS 19281982-2640123 in the constellation Sagittarius. The source of the notorious 1977 'Wow' signal, believed to come from an intelligent alien civilisation, may have come from a Sun-like star 1,800 light years from EarthThe only potential Sun-like star (pictured centre) found in the WOW! signal: A narrowband radio signal first received in 1977 in the US The Wow!

Source: Daily Mail November 25, 2020 12:57 UTC