cialis 5 mg efficace This image was added to the NASA Cassini website December 14, 2015. It shows an event never before seen by anyone. It shows the rings of Saturn very foreshortened and two moons, Enceladus (in front) and Tethys, in eclipse. This is an especially appealing image since the moons are crescent, rather than new or full. To be at exactly the right place and the right time aimed the proper direction, when you are traveling at thousands of miles per hour, is a pretty significant accomplishment. This is obviously a partial eclipse. More information is available at the Jet Propulsion Photojournalism site here.