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Sputnik: The First US Earth Satellite Launched on February 1, 1958

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Sputnik, launched on February 1, 1958, was the first Earth satellite of the United States. Weighing 13.97 kg, it was one of the largest satellites launched prior to that time. Notably, Sputnik was the first spacecraft to detect the Van Allen radiation belt, a major discovery in space science. The project aimed to deploy an American satellite into orbit during the International Geophysical Year and successfully operated for 111 days, marking a significant milestone in the Space Race.

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Sputnik: The First US Earth Satellite Launched on February 1, 1958

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  1. Sputnik Sputnik was Launched feburary1st195It was the 1stearth satellite of the united states. With a mass of 13.97 kg, it was one of the largest satellites to be launched before this time It was also the first spacecraft to recognize the Van Allen radiation belt. This project was started to put an American satellite into orbit during the international geophysical year and it lasted 111 days.

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