August 5, 2013: Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip.
Which sounds a bit less dramatic when you read...
The sun's magnetic field changes polarity approximately every 11 years...have been tracking the sun's polar magnetism since 1976, and they have recorded three grand reversals—with a fourth in the offing.
So yes it's "big" (as is just about anything to do with the sun) but it's also neither unexpected nor unprecedented.
but hey it proviked some of the humorous responses, so

too.
