Capt. Jon, a U-2 Dragon Lady pilot walks off the flight line for the last time at Al Dhafra Air Base, United Arab Emirates, Oct. 12, 2017. U-2's are routinely flown at altitudes over 70,000 feet, and U-2 pilots must wear a full pressure suit similar to those worn by astronauts. (U.S. Air Force photo by Tech. Sgt. Anthony Nelson Jr.)