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Which was the first artificial satellite ever sent into space, and which country launched it?
ASputnik, launched by the Soviet Union in 1957
BAryabhatta, launched by India in 1975
CExplorer, launched by the United States in 1958
DVanguard, launched by the Soviet Union in 1961
Answer & Solution
Correct answer: A. Sputnik, launched by the Soviet Union in 1957
1. An artificial satellite is a man-made object placed in a fixed orbit around the earth or another planet.
2. The textbook records the very first artificial satellite as 'Sputnik'.
3. It was sent into space by the Soviet Union in the year 1957.
4. Hence the correct pairing is Sputnik / Soviet Union / 1957.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 10 "Space Missions", p.145_
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