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The cooperative spirit in the XMM-Newton and Chandra era
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The cooperative spirit in the XMM-Newton and Chandra era

January 25, 2013
From left to right: Dr Fred Jansen, XMM-Newton project scientist; Dr Martin Weisskopf, Chandra project scientist at NASA's Marshall Space Flight Center in Huntsville, Alabama and Dr Harvey D. Tananbaum, director of the Chandra X-ray Centre in Cambridge, Massachusetts.