SUN’S MAGNETIC FIELD IS ABOUT TO FLIP

The sun’s magnetic field changes polarity approximately every 11 years. It happens at the peak of each solar cycle as the sun’s inner magnetic dynamo re-organizes itself. The coming reversal will mark the midpoint of Solar Cycle 24. Half of ‘Solar Max’ will be behind us, with half yet to come.

http://science.nasa.gov/science-news/science-at-nasa/2013/05aug_fieldflip/

 

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