Sputnik was launched in October of 1957.

How long after the successful Russian launch did it take the United States to successfully launch a satellite of its own into space?

A. 3 days
B. 3 years
C. 3 months
D. 3 weeks



Answer :

Final answer:

Explorer 1 was launched by the United States in response to Russia's successful launch of Sputnik, marking the initiation of the American space program.


Explanation:

Explorer 1 became the first US satellite in space on January 31, 1958, after the successful launch of Sputnik by Russia in October 1957. This achievement marked the United States' entry into the space race.


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