関連ワード:
sputnik was the first satellite launched into space 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 sputnik i was the first artificial satellite launched into the space was sputnik the first satellite in space
