X-Rays from Saturn Pose Puzzles

http://www.spaceref.com/news/viewpr.html?pid=13793

The first clear detection of X-rays from the giant, gaseous planet Saturn has been made with NASA’s Chandra X-ray Observatory. Chandra’s image shows that the X-rays are concentrated near Saturn’s equator, a surprising result since Jupiter’s X-ray emission is mainly concentrated near the poles. Existing theories cannot easily explain the intensity or distribution of Saturn’s X-rays.