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   ocr: LANDSAT About Artificial Satellites Ans artificial satellite is a man-made object that orbits the earth. It is launched into orbit by a rocket. Satellites are usedto provide intormationand services to people onearth. The first artificial satellite, Russia's Sputnik 1, was launched on October 4, 1957.Since then, more than 4,UUU satellites have been placed in orbit. Inrecent years, many have been deployed, repaired and retrieved by U.S. space shuttle missions,