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Portal:Astronomy/Picture/27

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Credit: NRAO / L. Birzan and team (Ohio University)

A galaxy cluster, or cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity with typical masses ranging from 1014–1015 solar masses. MS 0735.6+7421 is a galaxy cluster located in the constellation Camelopardalis, approximately 2.6 billion light-years away. A composite image from Hubble and Chandra.