https://peertube.dngr.us/videos/watch/daefd283-7382-49b2-9ceb-787675d37c85 The 2.5-meter mirror on NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) telescope was cleaned recently in preparation for its first full cycle of science observations. Telescope technicians used water, a mild detergent, and a small filtered blower to remove dust and other material that had adhered to the mirror's surface. The SOFIA aircraft, a 747SP, is operated by NASA Armstrong Flight Research Center and based at Hangar 703 in Palmdale, CA. Duration: 56 seconds To learn more about SOFIA visit: https://www.nasa.gov/centers/armstrong/news/FactSheets/FS-096-DFRC.html Mirrored from YouTube: https://youtu.be/bZOHVSgtg8Q Original channel: NASA Armstrong Flight Research Center Wed, 15 Jul 2026 06:39:17 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/ec5edb1e-3795-4978-be4f-c67e98fbc992.png https://peertube.dngr.us/videos/watch/daefd283-7382-49b2-9ceb-787675d37c85 All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.