A black hole in an active galaxy is surrounded by a torus, a donut-shaped disk of gas and dust that hides the inner region, as seen in this artist's rendering. As the black hole consumes some of the material, it also superheats some and shoots it out along the galaxy's axis of rotation, in two jets of matter shown here in light blue
http://www.msnbc.msn.com/id/5085374/
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