What are the roles of space shuttles, space stations, and probes in the space program?

Space Shuttles preform many important tasks such as, taking satellites into orbit, repairing damaged satellites, and carrying astronauts and equipment to and from space stations. A space station provides a place where long-term observations and experiments can be carried out in space. Each space probe has a power system to produce electricity, a communication system to send and receive signals, and scientific instruments to collect data and preform experiments