After two decades in space, NASA's Cassini spacecraft has ended its remarkable journey of exploration. In this activity, split into four or more about 40-minute sessions, youth will: Build a parachute and probe that can descend and land safely from a high point. Creatively use the information learned in previous lessons to perform science and engineering techniques of design, construction, and testing. Learn the value of experimentation that allows testing, improvement, and refinement as a prof