When was Sputnik 1 launched?

A. 1970

B. 1957

C. 1980

D. 1990

Answer: Option B

Solution(By Examveda Team)

History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to orbit the Earth on its elliptical path.

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