SOFIA Observatory Finishes Open-Door Flight Tests

Video Courtesy: NASA NASA’s SOFIA flying observatory recently completed the second series of envelope-expansion flight tests with its telescope door open. The SOFIA is now fully cleared for astronomy missions at altitudes up to 45,000 feet and telescope elevations up to 58 degrees. After installation and checkout of remaining systems, the airborne observatory will begin infrared astronomy missions late this year. Click to subscribe! The most viewed aviat