The most massive black hole merger ever detected shakes up astrophysics

A groundbreaking cosmic event, GW231123, has been detected: the most massive black hole merger ever recorded. Two rapidly spinning black holes with masses of 100 and 140 solar masses merged to form a new black hole 225 times the mass of the Sun. This discovery challenges existing models of physics and astrophysics, as such high rotational speeds shouldn't be possible under standard theories. Scientists will investigate the implications of this extraordinary event, which may have originated from earlier mergers of smaller black holes.