Cape Cod-based 'Knights' prepare for Guardian Challenge
(From left to right): Staff Sgt. Justin Phelps, 1st Lt. Lauren Hardy and Airman 1st Class Randy Foster, each members of the 6th Space Warning Squadron, based at Cape Cod Air Force Station, Mass., will represent the 21st Space Wing during the 2008 Air Force Space Command Guardian Challenge competition May 7-11. During the competition, they will compete against the 50th Space Wing, based at Schriever Air Force Base, Colo., in pursuit of the Aldridge Trophy. (U.S. Air Force photo/Barbara J.S. Burnett)