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Explorer 1, the first American satellite to reach orbit, is launched. It carried scientific equipment that lead to the discovery of the Van Allen radiation belt.
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Explorer 1, the first American satellite to reach orbit, is launched. It carried scientific equipment that lead to the discovery of the Van Allen radiation belt.
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Explorer 1, the first American satellite to reach orbit, is launched. It carried scientific equipment that lead to the discovery of the Van Allen radiation belt.
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Explorer 1, the first American satellite to reach orbit, is launched. It carried scientific equipment that lead to the discovery of the Van Allen radiation belt.
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Pioneer 1 is launched to a height of 70,700 miles.
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