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Solar Cycles ex def

The sun has a magnetic field that flips approximately every 11 years.  Sunspots and solar flares are caused by the magnetic activity of the sun. The sunspots and solar flares can affect the earth by changing the amount of incoming sunlight and interacting with the earth's magnetic field. The disruption of our electromagnetic field interferes with our all of our electronics, radios and satellites and can cause the aurora borealis in the Northern Hemisphere.

Last modified date: Monday, August 16, 2010 - 9:36am