The X-37B Orbital Test Vehicle-6 sits on the flightline at NASA’s Kennedy Space Center, Fla., after completing its sixth successful mission, Nov. 12. 2022. The OTV-6 was the first mission to introduce a service module-a ring attached to the rear of the vehicle, expanding the number of experiments that can be hosted during a mission. (U.S. Air Force photo by Staff Sgt. Adam Shank)