Wednesday, October 23, 2019
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Where Do Supermassive Black Holes Come From?

Astronomers have a pretty good idea of how most black holes form: A massive star dies, and after it goes supernova, the remaining mass (if there’s enough of it) collapses under the force of its own gravity, leaving behind a black hole that’s between 5 and 50 times the mass of our sun. But this…