Sputnik program

Sputnik (Russian: Спутник, Russian pronunciation: [ˈsputnʲɪk] (ˈspootnik), which is translated as 'satellite') is the commonly known name of a group of various robotic spacecraft missions launched by the Soviet Union. The first of these, Sputnik 1, launched the first human-made object to orbit the Earth. That launch took place on October 4, 1957 as part of the International Geophysical Year and demonstrated the viability of using artificial satel... More
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