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Six Galaxies Captured Undergoing Sudden, Dramatic Transitions

19 Sep 2019, 07:47 UTC
Six Galaxies Captured Undergoing Sudden, Dramatic Transitions ESA/Hubble, NASA and S. Smartt (Queen’s University Belfast)

Galaxies come in a wide variety of shapes, sizes, and brightnesses, ranging from humdrum ordinary galaxies to luminous active galaxies. While an ordinary galaxy is visible mainly because of the light from its stars, an active galaxy shines brightest at its center, or nucleus, where a supermassive black hole emits a steady blast of bright light as it voraciously consumes nearby gas and dust. 

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