Note to Editors: Esposito will participate in a news briefing Nov. 8 at the Division of Planetary Sciences meeting in Louisville, Ky. Contents embargoed until 12:35 p.m. EST Nov. 8. A University of Colorado at Â鶹ӰԺ professor involved with the Cassini-Huygens mission is reporting an ever-changing vista at the frontiers of Saturn, featuring wayward moons, colliding meteoroids, rippling rings and flickering auroras.