The star N6946-BH1 quietly winked out of existence between 2009 and 2015. Mystery of the disappearing star: Scientists have no idea how it vanished without a supernova.The star N6946-BH1 in a spiral formation 22 million light years away known as the ‘fireworks galaxy’, was last seen by NASA’s Hubble Telescope in 2009. By 2015, it…

via Huge star vanished without a trace – Mystery of the disappearing star — UFO Sightings Hotspot

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