Scientists discover new black hole with a mass 70 times that of the sun

BY KATIE METTLER katie.mettler@washpost.com Sarah Kaplan contributed to this report.
THE WORLD


Before now, scientists did not think it was possible for a stellar black hole to have a mass larger than 20 times that of the sun, an approximation based on their understanding of the way stars evolve and die in the Milky Way. But that assumption was...

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