An brilliant picture of 'Coronal Loops over a Sunspot Group (http://www.nasa.gov/image-feature/coronal-loops-over-a-sunspot-group)'.
(http://www.nasa.gov/sites/default/files/thumbnails/image/sdo_0171_blos.jpeg)
More images here:
http://www.nasa.gov/mission_pages/sdo/images/index.html