By Jon Wallace, email wallacefj_at_comcast_dot_net
Solar Flares & Prominences
|Sunspots are areas of lower temperature but high activity on the sun. These are caused by the looping and shearing of the magnetic field lines due to the sun's differential rotational speeds (i.e.: equator rotates faster than poles). Many times, flares and prominences (loop-like structures) are associated with these sunspots.
(Click on thumbnails to see full-sized images)