Front row, left to right: Colonel Richard D. Husband, U.S. Air Force; Kalpana Chawla, Ph.D.; Commander William C. McCool, U.S. Navy. Back row, left to right: Captain David M. Brown, M.D., U.S. Navy; Captain Laurel Clark, M.D., U.S. Navy; Lieutenant Colonel Michael P. Anderson, U.S. Air Force; Colonel Ilan Ramon, Israeli Air Force. (NASA)