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      Knowledge Awaits!

      Space & Physics

      Observations of Satellite I

      The artificial satellites are man's first venture into experimental celestial mechanics. An account of how the first satellite's orbit was determined, and how our knowledge of this orbit can be applied

      • By Fred L. Whipple, J. Allen Hynek on December 1, 1957
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      ABOUT THE AUTHOR(S)

        Recent Articles by Fred L. Whipple

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