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Chorus of Black Holes Sings in X-Rays

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Galaxies with black holes

The blue dots in this field of galaxies, known as the COSMOS field, show galaxies that contain supermassive black holes emitting high-energy X-rays.

Credit: NASA/JPL-Caltech

Supermassive black holes in the universe are like a raucous choir singing in the language of X-rays. When black holes pull in surrounding matter, they let out powerful X-ray bursts.

From Jet Propulsion Laboratory/NASA
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