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Dark Matter Core Defies Explanation
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
NASA image release March 2, 2012 This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of the merging galaxy cluster Abell 520, formed from a violent collision of massive galaxy clusters. The natural-color image of the galaxies was taken with NASA's Hubble Space Telescope and with the Canada-France-Hawaii Telescope in Hawaii.
NASA Image and Video Library’s own descriptionCredit lineDark Matter Core Defies Explanation. NASA/GSFC, 2017-12-08. Public domain. ID: GSFC_20171208_Archive_e001774.