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Scientists discover 'monster' black hole that's so big it shouldn't exist -
The black hole, dubbed LB-1, was spotted by researchers from the National Astronomical Observatory of China. Located 15,000 light-years form Earth, the black hole has an enormous mass 70 times greater than the sun. Professor Liu Jifeng, who led the study, said: “Black holes of such mass should not even exist in our Galaxy, according …