Two British astronomers have concluded that the large black holes that occupy the center of most galaxies are now spinning faster than at any other time in history. The finding is published in the magazine 'Monthly Notices of the Royal Astronomical Society'.
There is strong scientific evidence that each galaxy has a black hole at its center, with masses that can reach up to a billion suns, which is why they are known by the adjective "supermassive." They cannot be seen directly, but their presence can be detected by the material that rotates around them, forming an accretion disk before disappearing . This disk reaches high temperatures and emits X-ray radiation that space telescopes detect, while associated radio emissions can be detected by ground-based telescopes. Furthermore, associated with black holes are usually twin jets.
Using optical, radio wave and X-ray data, astronomers have estimated the speed at which objects rotate, and how this motion has evolved over time. And they have concluded that, when the universe was half its current size, practically all supermassive black holes had a very low number of turns, while today they would be spinning faster than ever.
