The first man-made satellite, Sputnik I was launched by the former USSR in

The first man-made satellite, Sputnik I was launched by the former USSR in ________ ?

1. 1957

2. 1955

3. 1967

4. 1970

Correct Option: Option A,

1957

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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