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      Knowledge is Power

      Scientific American December 2000

      A Trace of the Corona

      New images help to explain why the sun's atmosphere is hotter than its surface

      • By Naomi Lubick on December 1, 2000

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      More in the December 2000 issue of Scientific American
      • Not Nelson's Obelisk
      • Completing the Circuit
      • Bits of Radio
      View Full Contents
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