We actually don’t know how fast a supermassive black hole in the Milky Way is rotating but there might be a way to find out – Prudent Press Agency

Unless Einstein was wrong, a black hole is defined by three properties: mass, rotation, and electric charge. The charge of the black hole should be nearly zero because the material captured by the black hole is electrically neutral. The mass of a black hole determines its size Event horizon, It can be measured in a number of ways, from the brightness of the material around it to the orbital motion of nearby stars. The rotation of a black hole is difficult to study.
How do x-rays from a black ho…

Click here to view the original article.