SOVIET FIRES EARTH SATELLITE INTO SPACE; IT IS CIRCLING THE GLOBE AT 18,000 M.P.H.; SPHERE TRACKED IN 4 CROSSINGS OVER U. S. Thus read the New York Times headline 56 years ago. On this day, October 4, 1957, the Soviet Union launched an artificial Earth Satellite into an elliptical low Earth orbit. Surprising everyone, it […]

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