Epimetheus and Titan against Saturn’s rings. Image credit: NASA/JPL/SSI Click to enlarge This Cassini photograph shows Saturn’s rings and two of its moons: Titan and Epimetheus. Saturn’s A and F rings are visible in this photograph, and the darker region is the 325 km (200 mile) -wide Encke gap. This image was taken on April … Continue reading "Titan and Epimetheus"