Slightly Beneath Saturns Ring Plane . ... Credit Copyright: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: When orbiting Saturn, be sure to watch for breathtaking superpositions of moon s, rings , and shadow s. One such picturesque vista was visible recently to the robot Cassini spacecraft now orbiting Saturn. In late February, Cassini captured a Rhea , the second largest moon of Saturn, while looking up from slightly beneath Saturn's expansive ring plane. ...