The first space satellite 'Sputnik' was launched in which year?
Sputnik 2 Estimates put the average length of the tail at about . The satellite burned up in the atmosphere. A copy of Sputnik 2 that was used in testing before the launch is located at the Kansas Cosmosphere and Space Center in Hutchinson, Kansas, USA. Sputnik 2 Sputnik 2 (, , "Satellite 2"), or Prosteyshiy Sputnik 2 (PS-2, , "Elementary Satellite 2") was the second spacecraft launched into Earth orbit, on 3 November 1957, and the first to carry a living animal, a Soviet space dog named Laika, who died a few hours after the launch. Launched by the U.S.S.R., Sputnik
Sputnik 3 Sputnik 3 Sputnik 3 (, "Satellite 3") was a Soviet satellite launched on May 15, 1958 from Baikonur Cosmodrome by a modified R-7/SS-6 ICBM. It was a research satellite to explore the upper atmosphere and near space, and carried a large array of instruments for geophysical research. "Sputnik 3" was the only Soviet satellite launched in 1958. Like its American counterpart, "Vanguard 1", "Sputnik 3" had succeeded in making it into orbit during the International Geophysical Year. In July 1956, the Soviet Union's OKB-1 completed the preliminary design for the first Earth satellite, designated ISZ (Artificial Earth Satellite). ISZ was