Northrop Grumman Corp. is a diversified defense contractor that delivers aeronautics, defense, mission, and space systems. Its aeronautics business manufactures both autonomous and piloted aircraft, including Global Hawk drones and the new B-21 bomber, produces the fuselage for the large-scale F-35 program, and provides maintenance and upgrade services for a wide range of military aircraft. The defense systems segment develops artillery and missile ammunition, guidance systems, long-range missiles, and missile defense technologies. Mission systems designs and integrates radar, navigation, and communication solutions for avionics, weapons control, and countermeasures across platforms ranging from helicopters to destroyers. The space systems business produces satellites, sensors, space structures, and rocket motors.