Satellite maintenance refers to the processes and activities involved in ensuring that satellites continue to function effectively in space. This includes regular monitoring of their systems, software updates, and troubleshooting any issues that may arise. Maintenance can also involve adjusting the satellite's position or orbit to maintain optimal performance. In some cases, satellite servicing missions may be conducted, where specialized spacecraft are sent to repair or upgrade satellites. These missions can extend the operational life of satellites, allowing them to continue providing valuable services such as communication, weather monitoring, and global positioning.