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NASAs SOFIA Flying Observatory Marks 100th Flight
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NASA's SOFIA Flying Observatory Marks 100th Flight

April 16, 2013
The staff of NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) gathered on the ramp outside the Dryden Aircraft Operations Facility in Palmdale, Calif., to mark a milestone—the flying observatory's 100th flight. The airborne observatory departed from the facility that evening on an engineering flight for the German Receiver for Astronomy at Terahertz Frequencies (GREAT) spectroscopic receiver. April 11, 2013 NASA / Tom Tschida