The Sun's rotation generates huge magnetic fields which shape active regions, sunspots and sculpt massive loops and prominences. The Sun is a magnetic, variable star... |
http://www.ssl.msfc.nasa.gov/ssl/pad/solar/the_key.htm |
http://www-spof.gsfc.nasa.gov/Education/Intro.html |
http://www.agu.org/sci_soc/cowley.html |
http://www.spacescience.org/SWOP/ |