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The cosmic microwave background radiation sphere
This still image is from the 
“Galaxies Mapped by the Sloan Digital Sky Survey” video. Courtesy Mark SubbaRao and Dinoj Surendran, Adler Planetarium/University of Chicago. Used by permission.
“Galaxies Mapped by the Sloan Digital Sky Survey” video. Courtesy Mark SubbaRao and Dinoj Surendran, Adler Planetarium/University of Chicago. Used by permission.