The 2.5-meter infrared telescope in the rear fuselage of NASA's SOFIA flying observatory tracked the star Polaris during characterization tests in March 2008.
The 2.5-meter infrared telescope in the rear fuselage of NASA’s SOFIA flying observatory tracked the star Polaris during characterization tests in March 2008.March 10. 2008
NASA Photo / Tom Tschida
ED08-0067-24