Which function involves launching satellites into orbit?

The function that involves launching satellites into orbit is referred to as spacelift. This term specifically encompasses all activities associated with the transportation of satellites from the Earth's surface into space, where they can achieve their designated orbits. Spacelift includes the design, testing, and operation of launch vehicles (rockets) as well as the actual launch operations needed to place satellites in orbit.

This function is critical for maintaining and expanding satellite constellations, which support various missions including communications, reconnaissance, and scientific observation. Spacelift plays a fundamental role in enhancing national security, enabling global communications, and providing vital data for environmental monitoring.

Other options, while related to space activities, refer to different aspects. Space control focuses on ensuring freedom of operations in space and protecting U.S. interests against threats. Satellite sustainment involves maintaining and operating existing satellites in orbit. Launch management relates to the processes and logistics of coordinating launch activities, but does not specifically define the act of actually launching satellites into orbit. Therefore, the term spacelift most accurately describes the function of launching satellites.