Space systems refer to the various technologies and structures that enable the exploration, study, and utilization of space. This includes spacecraft, satellites, launch vehicles, ground control systems, propulsion systems, communication systems, and navigation systems. Space systems research focuses on developing and improving these technologies to advance space exploration, satellite communications, Earth observation, and other space-related activities. Researchers in this field work to enhance the performance, efficiency, reliability, and safety of space systems, as well as to explore new technologies and concepts for future space missions and endeavors.