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NASA SMD Chief John Grunsfeld Visits SOFIA Flying
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NASA SMD Chief John Grunsfeld Visits SOFIA Flying Observatory

February 13, 2013
NASA Science Mission Directorate chief and former space shuttle astronaut John Grunsfeld (left) is briefed on the upgrades to the SOFIA observatory's avionics and flight systems by electronics technician John Spooner and pilot Troy Asher on the SOFIA flight deck during Grunsfeld's visit to the Dryden Aircraft Operations Facility in Palmdale, Calif. January 10, 2013 NASA / Jim Ross