| http://www.w3.org/ns/prov#value | - Astronomers now believe the supermassive black hole in the central galaxy of a cluster pumps energy into the system, preventing cooling of gas from causing a burst of star formation.???According to Ryan Foley of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass, the famous Perseus cluster is an example of a black hole bellowing out energy and preventing the gas from cooling to for
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