스푸트니크 3호는 발사에 성공 하였는가?
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.
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