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After the success of the Sputnik launch, the United States feared that the Soviets had superior nuclear capabilities.
What Was The Sputnik I
Sputnik 1 was the first artificial Earth satellite ever produced. It was launched by the soviet union into an elliptical low Earth orbit on 4 October 1957.
This was a giant step in the soviets space program at that time and it spurred to US to give more funding to STEM education and led to the creation of National Defense Education Act in 1958.
Learn more about the Space program at brainly.com/question/7548683