SOFIA, NASA's Stratospheric Observatory for Infrared Astronomy 747 plane, is readied for a flight out of the NASA Armstrong Flight Research Center at Palmdale Regional Airport in Palmdale, Calif. on Tuesday, Jan. 24, 2017. Four educators, two from California and two from Wisconsin, flew on the flight at part of NASA's Airborne Astronomy Ambassadors program. (Photo by Rachel Luna/The Sun, SCNG)