Astronomers Find a Black Hole That was Somehow Pushed Over Onto its Side - Universe Today

…  “The difference of more than 40 degrees between the orbital axis and the black hole spin was completely unexpected. Scientists have often assumed this difference to be very small when they have modelled the behaviour of matter in a curved time-space around a black hole. The current models are already really complex, and now the new findings force us to add a new dimension to them,” Poutanen states.