A U.S. Air Force B-52H Stratofortress, known as the "Ghost Rider," taxis as part of a test of its steering capability after being taken out of long-term storage, Feb. 12, 2015, Davis-Monthan Air Force Base, Ariz. The aircraft was decommissioned in 2008 and was selected to be taken out of storage and regenerated to eventually rejoin the active B-52 fleet. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)