Spitzer: Most Quasars Live on Snacks, Not Large Meals
19 Jun 2012, 17:10 UTC
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NASA's Spitzer Space Telescope: Black holes in the early universe needed a few snacks rather than one giant meal to fuel their quasars and help them grow, according to observations from NASA's Spitzer and Hubble space telescopes. Quasars are the brilliant beacons of light that are powered by black holes feasting on captured material, and in the process, heating some of the matter to millions of degrees.
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