A Close Pass of Saturn's Moon Dione

What's that past Dione? When making its closest pass yet of Saturn's moon Dione late last year, the robotic Cassini spacecraft snapped this far-ranging picture featuring Dione, Saturn's rings, and the two small moons Epimetheus and Prometheus . The above image captures part of the heavily cratered snow-white surface of the 1,100 kilometer wide Dione , the thinness of Saturn's rings, and the comparative darkness of the smaller moon Epimetheus . The image was taken when Cassini was only about 100,000 kilometers from the large icy moon . Future events in Cassini's continuing exploration of Saturn and its moons include tomorrow's flyby of Titan and imaging the distant Earth passing behind Saturn in June. Gallery: Images of Yesterday's Eclipse