Data relay satellites

Data relay satellites are specialized spacecraft that facilitate communication between ground stations and other satellites, especially those in high or hard-to-reach orbits such as geostationary orbit. They receive data transmissions from various satellites or remote locations and relay this information to ground control or other satellites, enabling continuous, reliable communication. Think of them as high-altitude internet hubs that ensure data can be transmitted seamlessly over vast distances in space, supporting GPS, weather monitoring, scientific research, and military operations. They play a crucial role in maintaining the flow of information in space-based networks.