Millions of fake universes clarify how black holes grow

Written by on January 4, 2023

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Leveraging supercomputing power, researchers have created simulations of millions of computer-generated “universes” to test astrophysical predictions that have eluded astronomical observations.

Black holes are surrounded by a mysterious, invisible layer—the event horizon—from which nothing can escape, be it matter, light, or information. The event horizon swallows every bit of evidence about the black hole’s past.

“Because . . .

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