Black holes observed colliding when universe was only 740m years old

Glimpse of galactic merger, via James Webb telescope, may explain presence of monster black holes A pair of black holes has been observed colliding in the ancient universe for the first time. The observations, by the James Webb Space Telescope, reveal a merger of two galaxies and the monster black holes at their centres when the universe was just 740m years old, about a 20th of its current age. The discovery that massive mergers appear to have been common in …