A complete article on satellite
A tellite is an artificial object that is intentionally placed into orbit around the Earth or another celestial body. Satellites are used for a wide variety of purposes, including communication, navigation, Earth observation, and scientific research. There are several types of satellites, including: Communications satellites: These satellites are used to transmit and receive signals for a variety of purposes, including television and radio broadcasting, telephone and internet communications, and military communications. Navigation satellites: These satellites are used to provide precise location and time information to users on the ground, in the air, or in space. The most well-known navigation satellite system is the Global Positioning System (GPS), which is used by billions of people around the world for applications such as driving directions and location tracking. Earth observation satellites: These satellites are used to gather data about the Earth's surface, oceans, and atmos...