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sputnik was the first satellite launched into orbit in 1957 sputnik was the first unmanned satellite launched into orbit in 1957 sputnik was the first unmanned satellite launched into orbit in 1957. quizlet 5. sputnik was the first satellite launched into orbit in 1957 what was the purpose of the launch of sputnik in 1957 why was the launch of sputnik in 1957 important
