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Most common geostationary satellites are either weather satellites, communication satellites relaying signals between two or more ground stations and satellites that broadcast signals to a large area on the planet. The b... More »

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Artificial satellites are used for many purposes, including communications, navigation, gathering weather information, creating maps and even spying. Artificial satellites come in several forms, including telescopes and ... More »

www.reference.com Science Astronomy

Although scientists use the term celestial body quite broadly, when they refer to a celestial body orbiting another body they are generally talking about natural satellites, or moons, orbiting a larger body such as a pla... More »

www.reference.com Science Astronomy
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As of 2015, India has launched six major types of satellites into space: communication, Earth observation, navigation, experimental, small and student satellites. Scientific spacecrafts were also sent to space primarily ... More »

www.reference.com Science Astronomy

As of 2014, over 3,700 man-made satellites orbit around the Earth. However, only approximately 1,100 of these are currently active. The rest are defunct or temporarily inactive. More »

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Hot Bird refers to a number of satellites operated by Eutelsat, a satellite company serving broadcasters, telecoms, ISPs and government agencies. Well-used Hot Bird satellites include the four broadcasting satellites ope... More »

www.reference.com Science Astronomy

The solar system is made up of the sun and all the planets, dwarf planets, moons, asteroids, meteoroids, comets, ice, rocks, artificial satellites and space-faring vessels. Living beings are also in the solar system, alt... More »

www.reference.com Science Astronomy