This event marked the launch of the second artificial satellite, Sputnik 2, into Earth's orbit in 1957. The launch was part of the Soviet Union's space exploration program and was the first successful launch of a satellite with a living creature on board. The satellite carried a female dog named
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Sputnik 3 was a Soviet satellite launched on 15 May 1958 from Baikonur Cosmodrome by a modified R-7/SS-6 ICBM. The scientific satellite carried a large array of instruments for geophysical research of the upper atmosphere and near space.