December 6, 2013
The Sun Reverses its Magnetic Poles
This visualization shows the position of the sun’s magnetic fields from January 1997 to December 2013. The field lines swarm with activity: The magenta lines show where the sun’s overall field is negative and the green lines show where it is positive. A region with more electrons is negative, the region with less is labeled positive. Additional gray lines represent areas of local magnetic variation.
[ Read the Article: Sun’s Magnetic Solar Cycle Depicted In New NASA Visualization ]