A rotating black hole, also known as a Kerr black hole, is a type of black hole that spins around its axis. This rotation causes the black hole to have a unique shape, making it slightly flattened at the poles and bulging at the equator. The spinning motion affects the space around it, creating a region called the ergosphere, where objects can be dragged along with the rotation. The rotation of a black hole also influences its gravitational pull, allowing it to attract matter more efficiently. As matter spirals into the black hole, it forms an accretion disk, heating up and emitting radiation. This process can make rotating black holes some of the most powerful sources of energy in the universe.