An article in the March 3 issue of the journal Nature purports to explain the extended sunspot minimum from 2008-2010. According to one of the authors, Piet Martens, the last time a sunspot minimum lasted twice as long as usual was around 1913 and before that, 1810. Although solar activity has increased recently, scientists have been puzzled by the recent lack of sunspots. This quiet period had...
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