Spy satellites are advanced spacecraft designed to gather intelligence from space. They orbit the Earth and use various sensors to capture images and collect data about military activities, natural resources, and environmental changes. This information is crucial for national security and strategic planning. These satellites can operate in different orbits, including low Earth orbit (LEO) and geostationary orbit. They often employ technologies like radar, infrared sensors, and optical imaging to monitor specific areas. The data collected helps governments and organizations make informed decisions regarding defense and resource management.