Satellite systems are groups of artificial satellites that orbit the Earth or other celestial bodies. They are used for various purposes, including communication, weather monitoring, navigation, and scientific research. These satellites collect and transmit data back to Earth, helping to improve our understanding of the planet and enhance daily activities like GPS navigation. There are different types of satellite systems, such as geostationary satellites, which remain fixed over one point on Earth, and low Earth orbit satellites, which move quickly around the planet. Each type serves specific functions, contributing to advancements in technology and global connectivity.