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  1. Sputnik 1 - Wikipedia

    • Sputnik 1 , sometimes referred to as simply Sputnik, was the first artificial Earth satellite. 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 sent a radio signal back to Earth for three weeks before its three silver-zinc batteries became depleted. Aerodynamic drag caused it to fall back into the … See more

    Etymology

    Спутник-1, romanized as Sputnik-Odin (pronounced [ˈsputnʲɪk.ɐˈdʲin]), means 'Satellite-One'. The Russian word for satellite, sputnik, was coined in the 18th century by combining the prefix s- ('fellow') and … See more

    Before the launch

    On 17 December 1954, chief Soviet rocket scientist Sergei Korolev proposed a developmental plan for an artificial satellite to the Minister of the Defense Industry, Dimitri Ustinov. Korolev forwarded a report by … See more

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