That Square Hole In The Sun

Last year, people began wondering why part of the sun was missing.  What had happened was that changes to the magnetic field were allowing hot plasma to fly off into space toward Earth, creating a coronal hole.Coronal holes are actually happening less right now, because we are experiencing a solar maximum. During this portion of the recurring cycle, the number of coronal holes decreases. During solar max, the magnetic fields on the sun reverse and new coronal holes appear near the poles with the opposite magnetic alignment. read more

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