The Monster Black Hole That Spins Faster Than Anything in the . . . M87’s black hole is spinning so fast that the inner edge of its accretion disk—the swirling disk of gas and dust that spirals toward the black hole—is moving at around 14% of the speed of light In numbers, that translates to roughly 42 million meters per second But how do scientists know this? Here’s where things get even more
Our Galaxys Monster Black Hole Is Spinning Almost As Fast As . . . The unprecedented global collaboration spent years working to give us the first direct images of the shadows of black holes, first with M87* in a galaxy 55 million light-years away, then with Sgr A*, the supermassive black hole at the heart of our own galaxy