Supermassive black holes: Two nearby giants are heading for a collision

Two supermassive black holes have been discovered just 1600 light years apart, and they are likely to collide in about 250 million years Space 30 November 2021 By Leah Crane The two bright spots in this image are dense groups of stars, each with a supermassive black hole at the centre ESO/Voggel et al. A … Read more