Some Black Holes Can Kill Entire Galaxies

Black holes might kill entire galaxies with blazing energy, dooming embryonic stars before they can get born and condemning the remaining stars to a slow death, scientists have found.

Although nothing can escape from a black hole, before matter falls into one, it swirls around to form a disk that heats up as it packs together, radiating energy.

Supermassive black holes are thought to reside at the center of almost every galaxy, with some growing to billions of times the mass of our sun. To see what impact these monsters might have, researchers relied on data from the Hubble Space Telescope and the Chandra X-ray Observatory, looking for galaxies with very high X-ray emissions, a classic signature of black holes devouring gas and dust

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