NASA's Stratospheric Observatory for Infrared Astronomy, or SOFIA, 747SP flies above California's Mojave Desert during a functional check flight Dec. 9, 2009.
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NASA’s Stratospheric Observatory for Infrared Astronomy, or SOFIA, 747SP flies above California’s Mojave Desert during a functional check flight Dec. 9, 2009. The flight was a precursor to a series of test flights with the telescope cavity door open.December 9, 2009
NASA Photo / Jim Ross