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Last updated on April 24, 2014 at 1:21 EDT
NASA Reinstalls Main Mirror in SOFIA Airborne Observatory
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NASA Reinstalls Main Mirror in SOFIA Airborne Observatory

January 3, 2013
Technicians lift SOFIA's primary mirror assembly above NASA's 747SP airborne astronomy aircraft just prior to installation in the telescope cavity. October 8, 2008 NASA Photo / Carla Thomas ED08-0262-47