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CMB Temperature Fluctuations: A detailed all-sky image of the infant universe created from nine years of WMAP data reveals 13.7 billion-year temperature fluctuations (shown as color differences). Credit: NASA / WMAP Science Team

CMB Temperature Fluctuations: A detailed all-sky image of the infant universe created from nine years of WMAP data reveals 13.7 billion-year temperature fluctuations (shown as color differences). Credit: NASA / WMAP Science Team

CMB Temperature Fluctuations: A detailed all-sky image of the infant universe created from nine years of WMAP data reveals 13.7 billion-year temperature fluctuations (shown as color differences). Credit: NASA / WMAP Science Team

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