For 65 years, the Mojave Desert has spawned the fastest, highest-flying and most agile airplanes in the world. This vast expanse of scrub and Joshua tree forests encompasses the U.S. Air Force's deadly-secret Area 51 in Nevada, Lockheed Martin's Skunk Works in Palmdale, California, and, at Mojave airfield itself, Burt Rutan's sci-fi enclave, Scaled Composites.