Remembering Apollo 1, Columbia, and Challenger at Arlington

NASA Acting Administrator Christopher Scolese, left, and other NASA senior leaders participate in a wreath laying ceremony as part of NASA's Day of Remembrance, Thursday, Jan. 29, 2009, at Arlington National Cemetery. The wreathes were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls) [Larger version]

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