Saturn's Moons Postcard.
Three of Saturn's moons set against the darkened night side of the planet. Saturn is present on the left this image but is too dark to see. Rhea is closest, Enceladus is to the right of Rhea and Dione is to the left of Rhea, and is partly obscured by Saturn. This view looks toward the northern, sunlit side of the rings from just above the ringplane. Image Credit: NASA/JPL/Space Science Institute