NASA's Stratospheric Observatory for Infrared Astronomy 747SP reached a milestone Dec. 18, 2009, when the doors covering the aircraft's German-built infrared astronomy telescope were fully opened during flight.
ED09-0352-01
NASA’s Stratospheric Observatory for Infrared Astronomy 747SP reached a milestone Dec. 18, 2009, when the doors covering the aircraft’s German-built infrared astronomy telescope were fully opened during flight.Dec. 18, 2009
NASA Photo / Carla Thomas