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The sun erupts with one of the largest solar flares of this solar cycle in this NASA handout photo taken on March 6, 2012 (Credit: Reuters/NASA/SD0/AIA/Handout)

The sun erupts with one of the largest solar flares of this solar cycle in this NASA handout photo taken on March 6, 2012 (Credit: Reuters/NASA/SD0/AIA/Handout)