Satellites are artificial objects placed into orbit around the Earth or other celestial bodies. They are commonly used for communication, weather monitoring, navigation, and scientific research. Satellites can be categorized into different types based on their purpose, such as communication satellites, weather satellites, navigation satellites, and Earth observation satellites. They play a crucial role in modern society by enabling global communication, monitoring weather patterns, facilitating navigation systems, and gathering data for scientific research in areas such as climate change, environmental monitoring, and disaster management. The development and advancement of satellite technology continue to revolutionize the way we interact with and understand the world around us.