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A '''satellite''' is an object that orbits around a celestial body. Earth is a satellite of the Sun, which is a satellite of the Milky way.  Man-made satellites can facilitate [[telecommunications]] or serve other functions.

A '''satellite''' is an object that orbits around a celestial body. Earth is a satellite of the Sun, which is a satellite of the Milky way.  Man-made satellites can facilitate [[telecommunications]] or serve other functions.

An example of a man-made satellite is a [[radio]] relay station that orbits the [[earth]]. A complete satellite communications system also includes [[earth]] stations that communicate with each other via the satellite. The satellite receives a signal transmitted by an originating earth station and retransmits that signal to the destination earth station(s). Satellites are used to transmit telephone, television and other data signals originated by common carriers, broadcasters and distributors of cable [[television]] program material.  

An example of a man-made satellite is a [[radio]] relay station that orbits the [[earth]]. A complete satellite communications system also includes [[earth]] stations that communicate with each other via the satellite. The satellite receives a signal transmitted by an originating earth station and retransmits that signal to the destination earth station(s). Satellites are used to transmit telephone, television and other data signals originated by common carriers, broadcasters and distributors of cable [[television]] program material. '''Weather satellites''' are used to image and observe the earth's [[weather]] to aid [[Meteorologist|meteorologists]] with [[forecast|weather forecasting]].

In [[history]], the term "satellite nation" refers to those nations under the sphere of influence of the [[Soviet Union]], or under the "[[Iron Curtain]]".

In [[history]], the term "satellite nation" refers to those nations under the sphere of influence of the [[Soviet Union]], or under the "[[Iron Curtain]]".