Sputnik 1
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Sputnik 1 (Template:IPAc-en; see ยง Etymology) was the first artificial Earth satellite.Template:Sfn It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It orbited for three weeks before its batteries ran out. The satellite then silently continued to orbit the planet for two months before it fell back into the atmosphere on the 4th of January 1958.
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