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Cosmology

Cosmology

LIGO gravitational-wave signal backs up Hawking’s area theorem

13 Jul 2021
Simulated image of two black holes colliding
Cosmic testbed A computer simulation of the black-hole collision that produced the first gravitational wave signal to be detected, GW150914. (Courtesy: Simulating eXtreme Spacetimes (SXS) project/LIGO)
Stephen Hawking’s 40-year-old theorem about the area of a black hole’s event horizon has been co

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