Mimas and the Rings

Caption NASA:"A recently discovered diffuse ringlet shines brightly in the Cassini Division as Mimas cruises past at bottom. Most of the main Rings are comprised of particles ranging from marble-size to house-size. In contrast, the brightness of this ringlet (seen right of center) when viewed at a high phase angle (the Sun-Saturn-Spacecraft angle) indicates it contains a large quantity of microscopic particles, which were likely generated by the disruption of a larger body. Such an event was probably recent, since this ringlet was not observed by the Voyager spacecraft in 1980 and 1981.
This view looks toward the lit side of the Rings from about 1° below the Ring-Plane. Mimas, which is in the foreground between Cassini and the Rings, is 397 Km (about 247 miles) wide. See PIA08330 and PIA08331 for other views of the new ringlet.

The image was taken in visible light with the Cassini spacecraft wide-angle camera on Nov. 18, 2006 and from a phase angle of 140°. Cassini was then at a distance of about 1,2 MKM (about 800.000 miles) from Saturn. Image scale is roughly 7 Km per pixel".