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Another Dalton Minimum?

Solar activity drops again with the sun without sunspots for the first time in 70 days.

SOHO image December 20 2010 with no sunspots

We are just part-way into Solar Cycle 24, which has been much lower than predicted. The Dalton Minimum was a period of low sunspot activity from 1790 to 1830.  At the same […]