How plasma swirling around black holes can produce heat and light

Tiny Galaxy’s Giant Black Hole Throws Astronomers for a Loop

Gravitational Waves Should Permanently Distort Space-Time. The “gravitational memory effect” predicts a passing gravitational wave should forever alter space-time. Physicists linked the phenomenon to fundamental cosmic symmetries and a potential solution to the black hole information paradox.

SpaceX launches $214M NASA satellite to study black holes