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The top documents tagged [james van allen]
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THE INTERNATIONAL SPACE WEATHER INITIATIVE (A FOLLOW-ON TO THE INTERNATIONAL HELIOPHYSICAL YEAR) February 2007-2009 May 2009 Joseph Davila, Barbara Thompson,
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NASA Space Age History The Start of the Space Age "An Act to provide for research into the problems of flight within and outside the Earth's atmosphere,
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NASA
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Space Race In The 1950s and 1960s
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