Supermassive black hole Sagittarius A* is spinning nearly as fast as it can, dragging the very fabric of space-time with it and shaping the heart of the Milky Way.
Supermassive black hole at heart of the Milky Way is approaching the cosmic speed limit
Source: space
Source Link: https://www.space.com/milky-way-supermassive-black-hole-cosmic-speed-limit