The accretion disk(circular rotating matter) solar system matter & nova remains/ binary star sucked into the hole.and jet (yet visible matter,subatomic breakdown, radiation) of a supermassive black hole. All spiral galaxies seem to have supermassive black holes at their center. That and dark matter (invisible) produce the galaxy the high speed of rotation. Jet is the still visible radiation from its breakdown of matter under it's gravity.
Capture the extraordinary. Explore the universe through Hubble’s eye, and witness the most dangerous, spectacular and mysterious depths of the cosmos. View an expansive collection of Hubble images: planets, stars, nebulae, galaxies and more. Picture Album spreads the universe out before you in all its dazzling complexity.