Thanks Neeyik, that's interesting stuff. ----------------------------------- @Insanechild Sorry i can't answer your question and in fact have one of my own again. [rofl] How does a black hole manage to eject material when it becomes a Quasar? Is the mass of the black hole reduced so the gravitational forces are not so great, or is it just a case of it feeding until it has to vomit some mass out again? If it's mass doesn't somehow get reduced then how and why can the matter ejected from it's centre escape? EDIT: Just had a thought, unless it's because the matter is ejected along the edge of the event horizon where the pull is less?