A satellite or an artificial satellite[a] is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather …

A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a …

Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and …

2018年9月5日 · A satellite is a body that orbits around another body in space. There are two different types of satellites – natural and man-made. Examples of natural satellites are the …

Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location. [1] The signals are …

A WildBlue satellite dish on the side of a house for receiving Internet. Satellite Internet access is Internet access provided through communication satellites; if it can sustain high speeds, it is …

A satellite navigation or satnav system is a system that uses satellites to provide autonomous geopositioning.A satellite navigation system with global coverage is termed global navigation …

The first known natural satellite was the Moon, but it was considered a "planet" until Copernicus' introduction of De revolutionibus orbium coelestium in 1543. Until the discovery of the Galilean …

A satellite telephone, satellite phone or satphone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of …

A satellite is a law orbital space tae space an space tae grund transmissin/receptin seestem an is the backbone o mony telecoms, internet, telly an cell networks oothrou the warld. Tecnology. …