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Solar cycle

Has the mystery of the missing sunspots been solved?

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The discovery of a new sunspot marks the beginning of the 24th solar cycle

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Solar flare, April 12-13, 2010, photographed by NASA's Stereo spacecraft

NASA plans to build a spacecraft that will visit the sun

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The Ulysses spacecraft passes over the sun's north pole

  • 5 תגובות
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