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The Public Domain

@publicdomainthing

This blog is dedicated to music, films, and books that fall under into the public domain. Because the best things don't need copyright
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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.

NASA, ESA, CFHT, CXO, M.J. Jee (University of California, Davis), and A. Mahdavi (San Francisco State University)

#space#science#nasa#esa#dark matter
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