Airmen from the 89th Aerial Port Squadron and the 22nd Airlift Squadron unload equipment from a specially modified C-5C Galaxy which transported parts of NASA’s James Webb Space Telescope from Los Angeles International Airport in California to Joint Base Andrews, Md., July 17, 2014. The “Pathfinder” is a test piece for the space telescope, which is currently being assembled at Goddard Space Flight Center in Greenbelt, Md. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

Desiree Stover, a photographer from NASA’s Goddard Space Flight Center in Greenbelt, Md., photographs the crew who transported the Pathfinder test piece for NASA’s James Webb Space Telescope from Los Angeles International Airport in California to Joint Base Andrews, Md., July 17, 2014. Teams from NASA and the 22nd Airlift Squadron from Travis Air Force Base, Calif., worked together to move the Pathfinder. The 89th Aerial Port Squadron from Andrews assisted with manpower and equipment. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

Airman 1st Class Gelisha Jones (driving forklift) and Staff Sgt. Ryan Osinski, both air transportation specialists from the 89th Aerial Port Squadron place ramps on a specially modified C-5 Galaxy in preparation to unload a massive piece of NASA’s James Webb Space Telescope at Joint Base Andrews, Md., July 17, 2014. Crews from the 89th APS, 22nd Airlift Squadron out of Travis Air Force Base, Calif., and NASA’s Goddard Space Flight Center in Greenbelt, Md., worked together to deliver the cargo. (U.S. Air Force photo/U.S. Air Force photo/Staff Sgt. Torey Griffith)

Airman 1st Class Gelisha Jones, an air transportation specialist from the 89th Aerial Port Squadron, wheels a forklift as she places metal ramps on a specially modified C-5 Galaxy in preparation to unload a massive piece of NASA’s James Webb Space Telescope at Joint Base Andrews, Md., July 17, 2014. Crews from the 89th APS, 22nd Airlift Squadron out of Travis Air Force Base, Calif., and NASA’s Goddard Space Flight Center in Greenbelt, Md., worked together to deliver the cargo. (U.S. Air Force photo/U.S. Air Force photo/Staff Sgt. Torey Griffith)

Master Sgt. Philip Magreevy, 22nd Airlift Squadron NCO-in-charge of loadmaster standardization and evaluation, and members of the NASA team go over the plan to unload the Pathfinder from the C-5C Galaxy at Joint Base Andrews, Md., July 17, 2014. The 22nd Airlift Squadron is from Travis Air Force Base, Calif. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

Crew members carefully ease the Pathfinder out of the C-5C Galaxy’s cargo area during the 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” planes 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)

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)

The Pathfinder slowly inches its way out from the C-5C Galaxy’s cargo hold at Joint Base Andrews, Md., July 17, 2014. The crew used a winch to carefully squeeze the trailer through the Galaxy’s specially-modified rear doors. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

The Pathfinder slowly inches its way out from the C-5C Galaxy’s cargo hold at Joint Base Andrews, Md., July 17, 2014. The crew used a winch to carefully squeeze the trailer through the Galaxy’s specially-modified rear doors. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

Loadmasters from the 22nd Airlift Squadron monitor the tight clearances between the Pathfinder and the C-5C Galaxy’s rear opening as the cargo inches its way onto the ramp at Joint Base Andrews, Md., July 17, 2014. The 22nd ALS is from Travis Air Force Base, Calif., and operates the Air Force’s only C-model Galaxies, which are specially modified to carry NASA’s space equipment. (U.S. Air Force photo/Staff Sgt. Torey Griffith)

After several hours of effort, the Pathfinder is on the ramp at Joint Base Andrews, Md., July 17, 2014. The cargo was then delivered to Goddard Space Flight Center in Greenbelt, Md., by tractor trailer. (U.S. Air Force photo/Staff Sgt. Torey Griffith)