Voyager 2 obtained this high-resolution picture
of Saturn's rings Aug. 22, when the spacecraft was 4 million kilometers
(2.5 million miles) away. Evident here are the numerous "spoke"
features,in the B-ring; their very sharp, narrow appearance suggests
short formation times. Scientists think electromagnetic forces
are responsible in some way for these features, but no detailed
theory has been worked out. Pictures such as this and analyses
of Voyager 2's spoke movies may reveal more clues about the origins
of these complex structures. The Voyager project is managed for
NASA by the Jet Propulsion Laboratory, Pasadena, Calif. (P-23925)
