How Black Holes Help Shape Their Galaxies [Video]

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Astrophysicist and author Caleb Scharf talks about his article "The Benevolence of Black Holes," in the August issue of Scientific American

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Black holes don't just pull stuff in—they also give back. In "The Benevolence of Black Holes," adapted from his new book Gravity's Engines, Caleb Scharf of Columbia University explains how these cosmic heavyweights shape the structures around them by spewing matter and radiation outward. In the video below, Scharf talks about some of the ways a black hole can influence its surroundings.


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