satellite
sat·el·lite
noun \ˈsa-tə-ˌlīt\Definition of SATELLITE
Examples of SATELLITE
- Satellites help meteorologists predict the weather.
- Images of the planet are sent by satellite.
Origin of SATELLITE
Other Astronomy Terms
Rhymes with SATELLITE
sat·el·lite
noun \ˈsat-əl-ˌīt\ (Medical Dictionary)Medical Definition of SATELLITE
satellite
noun (Concise Encyclopedia)Natural object (moon) or spacecraft (artificial satellite) orbiting a larger astronomical body. Most known natural satellites orbit planets; the Earth's Moon is the most obvious example and was the only one known until the discovery of the Galilean satellites of Jupiter in 1610. All the solar system's planets except Mercury and Venus have moons, which vary greatly in size, composition (from rock to mostly ice), and activity (from cold and inert to volcanic). Some asteroids are also known to have their own moons. The first artificial satellite, Sputnik 1, was launched into orbit around Earth in 1957. Since then, thousands have been sent into orbit around Earth as well as the Moon, Venus, Mars, Jupiter, and other bodies. Artificial satellites are used for scientific research and other purposes, such as communication (see communications satellite), weather forecasting, Earth resources management, and military intelligence. See also Landsat.
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