A satellite dish is a type of antenna that receives signals from satellites orbiting the Earth. These dishes are typically round and made of metal or plastic, designed to capture signals from space and direct them to a receiver. They are commonly used for television broadcasts, internet services, and other forms of communication. The dish works by reflecting signals to a central point, where a receiver converts the signals into usable data. Satellite dishes can vary in size, with larger dishes often used for commercial purposes, while smaller ones are used for residential services like cable television and satellite internet.