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Published byNigel Shannon Oliver Modified over 8 years ago
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By:Shanise Levi Mrs.Huntze 6 th pd. 3-11-11
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Date- Jan.31,1958 The Explorer was the 1 st successful United States satellite. Following Soviet success with Sputnik and the embarrassing failure in December 1957 of the 1 st American Attempt to launch a satellite, the U.S. Army launched a scientific satellite using a rocket that had been developed to test guide missile components.
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Smithsonian Institution, National Air and Space Museum, Milestones of Flight Gallery.
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William H. PickeringDirector of the Jet Propulsion Laboratory, which designed and built Explorer. James A. Van AllenUniversity of Iowa physicist who directed the designed and creation of explorer's instruments. Wernher Von BraunHead of the U.S. Army Ballistic Missile Agency team that designed and built the Jupiter –C- Rocket
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