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Harvard-Smithsonian Center for Astrophysics

"Red Nugget" Galaxies Were Hiding in Plain Sight

13 Sep 2013, 13:10 UTC
"Red Nugget" Galaxies Were Hiding in Plain Sight

September 13, 2013: In 2005 the Hubble Space Telescope spotted unusually small galaxies densely packed with red stars in the distant, young universe. They were nicknamed "red nuggets," not only because they are small and red but also their existence challenged current theories of galaxy formation, making them precious in astronomers' eyes.

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