Satellites

Title: Satellites

Explanation of Topic (Definition, Key Points, Details)

Satellites are defined as any object that orbits any other and also be man made equipment that orbits around the earth or the moon. A satellites in a polar orbits travels over the North and South poles. A polar orbit may be from several hundreds miles to several thousands miles above the Earth. A satellite in a high-altitude, geostationary orbit circles the earth once every 24 hours, the same amount of time it takes for the earth to spin on its axis. Satellites can be celestial, such as a moon orbiting a planet in the solar system or a planet in the solar system orbiting the sun. Man-made satellites are typically launched into outer space from earth to collect data, photos and other information about earth and all the many things that exist around it. There are different types of satellites that we use like weather satellite, cable satellite, and more. Overall satellite is everywhere and we use it for a lot of things in the world.

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Links to more information:

http://library.thinkquest.org/26451/contents/massmedia/satellites.htm http://www.answers.com/topic/satellite

Interesting Facts or Discoveries: I think is a interesting fact that, a satellite is basically any object that revolves around a planet in a circular or elliptical path. History's first artificial satellite, the Sputnik 1, was launched by the Soviet Union in 1957. Since then, thousands of satellites have been launched into orbit around the Earth.

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