The Sun rises in the east and sets in the west and provides a steady and almost constant amount of energy. It also goes through an 11-year cycle in which solar activity reaches a minimum and a maximum....see my 2-18-11 blog.
NASA thinks the mystery of why the Sun went through such a deep and lasting minimum has to do with the flow of plasma currents deep within the Sun.
Read More About It:
http://science.nasa.gov/science-news/science-at-nasa/2011/02mar_spotlesssun/
Sky Guy in VA
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