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Inflow, Outflow Cycle of Gas Near Black Hole
Artist impression of Abell 2597 showing the central supermassive black hole expelling cold, molecular gas -- like the pump of a giant galactic fountain. Recent data suggests that the expelled gas will eventually fall back towards the black hole, restarting the cycle.
Color different parts of the electromagnetic spectrum using multiwavelength images from space. Create your own background for your favorite device.
