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Associated Press
George Efstathiou, a European Space Agency astrophysicist speaks to The Associated Press after the press conference at ESA headquarters, in Paris, Thursday, March 21, 2013 in front of the most detailed map ever created of the cosmic microwave background acquired by ESA's Planck space telescope. Efstathiou, who announced the Planck satellite mapping on Thursday, says the findings also offer new specificity of the universe's composition. (AP Photo/Francois Mori)

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