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A quasar can outshine the entire galaxy surrounding its feeding black hole

HERE’S THE INTERESTING PART

If you want to announce your presence to the entire observable universe, this is how you do it. These intensely luminous objects are powered by massive supermassive black holes rapidly consuming an overwhelming amount of surrounding matter. The sheer friction of the swirling accretion disk generates a beam of light so profoundly bright it completely outshines the entire galaxy housing it.

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A quasar can outshine the entire galaxy surrounding its feeding black hole
STACKY / Science
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