After two decades in space, NASA's Cassini spacecraft has ended its remarkable journey of exploration. In this activity, split into two about 40-minute sessions, youth will: Be introduced to several of Saturn’s exciting features that are of particular interest to scientists and that capture the imagination of all! Develop their listening and writing skills. Make and take their own multilayer 3-D book of Saturn, with diagrams showing its various layers, ring system, and many moons. Activity Goal