Maybe we finally have some answers to the prolonged Solar Cycle 23 minimum. Below is from the NASA Science website relased this afternoon.
When solar activity recently plunged into a century-class minimum, many experts were puzzled. Now a group of researchers say they have cracked the mystery of the missing sunspots. Read the full story at http://science.nasa.gov/science-news/science-at-nasa/2011/02mar_spotlesssun/