Monster black hole M87 is spinning at 80% of the cosmic speed limit — and pulling in matter even faster

Scientists have made groundbreaking discoveries about the supermassive black hole at M87's center. The black hole, 6.5 billion solar masses, spins at 80% of its theoretical maximum speed. Its accretion disk's inner edge moves at 14% light speed, while matter falls in at 23% light speed, consuming up to 0.4 solar masses yearly. These findings support theories about black hole jet propulsion and advance our understanding of extreme cosmic physics.