42 Engineering design services; software engineering services; engineering services, namely, providing engineering services for spacecraft vehicles, satellites, space reconnaissance and surveillance systems and software, space target acquisition systems and software, sensors, computer hardware, rendezvous proximity operations systems and software, attritable and expendable near earth, deep space, and cislunar satellites and, spacecraft that are interoperable and cohesive with one or more other spacecraft, space-to-space imagery systems, rendezvous proximity systems, pilot-vehicle interface systems for manual and automated and AI-powered spacecraft, satellite data processing systems, and spacecraft flight and operation systems