Scientists generally believe that there are two types of black holes.
Astronomers have discovered a black hole in the Milky Way so huge that it challenges existing models of how stars evolve, researchers said Thursday.
“Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution,” he added. But researchers believed that typical stars in the Milky Way shed most of their gas through stellar winds, preventing the emergence of a black hole the size of LB-1, Liu said.
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