Spinning Black Holes Could Create Clouds of Mass

Nothing, not even light, can come out of a black hole. At least, that's the conventional wisdom, and it's certainly true that--once the event horizon is crossed--there's no going back. But for rotating black holes, there's a region outside the event horizon where strange and extraordinary things can happen, and these extraordinary possibilities are the focus of a new paper in the American Physical Society journal Physical Review Letters.The study reports simulations of a phenomenon called superr...