This Cassini image shows a disturbance in one of Saturn's rings caused by a central moonlet. The phenonemon is called a propeller feature and this one is known informally as "Bleriot," named after Louis Bleriot, the French engineer and aviator who in 1909 was the first person to fly across the English Channel.
This is the third and final propeller feature to be targeted by Cassini for a close flyby. Many small, bright specks and linear, scratch-like artifacts are visible in the image due to cosmic rays and particles of radiation near the planet striking the camera detector during the exposure.
Photo made available on May 10.
Dazzling Photos of Saturn Show Ringed Planet in All Its Glory