PASADENA, Calif., March 3 (UPI) -- The U.S. space agency says its Cassini spacecraft has found a moonlet within Saturn's G ring that may be a main source of the G-ring and its single ring arc.
National Aeronautics and Space Administration scientists analyzed images acquired by Cassini during the course of about 600 days and found the tiny moonlet, about one-third of a mile in diameter, embedded within a partial ring, or ring arc, previously found by Cassini in Saturn's G ring.