Satellite navigation is a technology that uses signals from satellites to determine the precise location of a device on Earth. It works by receiving signals from multiple satellites, which then calculate the device's position using the time it takes for the signals to arrive. This information is essential for various applications, including driving directions, outdoor activities, and mapping. The most well-known satellite navigation system is the Global Positioning System (GPS), developed by the United States. Other systems include Galileo from the European Union and GLONASS from Russia. These systems provide accurate location data, helping users navigate efficiently in various environments.