Two crew members from NASA’s Goddard Space Flight Center watch the tight clearance between the the cargo and C-5C Galaxy's fuselage during the careful unloading process at Joint Base Andrews, Md., July 17, 2014. This C-model Galaxy from the 22nd Airlift Squadron at Travis Air Force Base, Calif., is one of two “space cargo modified” Galaxies in the Air Force fleet. The planes were customized to carry satellites and large cargo, and routinely support the NASA mission by delivering assets throughout the nation. (U.S. Air Force photo/Staff Sgt. Torey Griffith)