A NASA WB-57F Canberra from NASA Johnson Space Center sits on the tarmac Nov. 22, 2013, on RAF Mildenhall, England. The WB-57 is an all-weather, high-altitude research aircraft on its way to Ellington Field, Houston. The WB-57 has two crew members, positioned at separate tandem stations in the forward section of the fuselage. The pilot station contains all essential equipment for flying the aircraft. (U.S. Air Force photo by Karen Abeyasekere/Released)