NASA SMD Chief John Grunsfeld Visits SOFIA Flying Observatory
NASA
Feb 06, 2013
Image Article
NASA SMD Chief John Grunsfeld Visits SOFIA Flying Observatory
ED13-0008-16
John Grunsfeld (left) and an unidentified telescope technician examine the framework supporting the 100-inch primary mirror in the telescope cavity of NASA’s SOFIA flying observatory.January 10, 2013
NASA / Jim Ross