this topic relates to my post in a threat relating to GLAST https://www.physicsforums.com/showthread.php?t=240620 Super massive blackholes eject jets of matter back out into space. The matter in these jets shoot out of the blackhole at 99% the speed of light. However the escape velocity for a blackhole is the speed of light so how could any type of matter wheter it being gas or radiation escape a blackhole propogating at just under the speed of light. If the jets are a form of radiation wouldnt that mean it would be traveling the speed of light because thats the speed radiation and light travel. Also what happens to an object trying to escape the event horizon traveling exactly the speed of light ie. blackhole escape velocity. I guess it falls in considering light itself cant escape the horizon. I have read that dark matter could possibly interact with matter and the result would be the two canceling each other out and then being converted into pure energy Matter canceling its self out and converting to energy violates conservation of mass because matter is destroyed and also violates conservation of energy because energy is created so that is also odd. " some scientists think dark matter is in the form of massive objects, such as black holes" http://www.eclipse.net/~cmmiller/DM/ If dark matter lurks in blackholes is it possible that as matter from a galaxy is pulled into the balckhole it reacts with the darkmatter canceling one another out and creating energy which is then ejected out of the blackhole back into space or the energy could be responsible for propelling whatever matter the jets are made up of back out into space. I tryed to pot some links to where i read about dark matter canceling matter but cant remember where it was. Maybe someone can post some literature.