Older Black Holes Still Full of Energy

Quasars are the bright, young things of the black hole family, emitting brilliant light as they gobble up matter. Their older siblings at the center of enormous galaxies were thought to be both less powerful and messier eaters–ejecting the majority of matter before it could be consumed. Now new observations with NASA's Chandra X-ray Observatory have revealed that these black holes are as energetic as quasars and might just be responsible for slowing star formation.

Site – http://www.sciam.com


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