A pair of nearby supermassive black holes 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

A pair of nearby supermassive black holes 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