The Cassini spacecraft captured this quartet of Saturn's moons arranged artfully with the gas giant's rings. Saturn's largest moon, Titan (5,150 kilometres across), is in the background. Between Cassini and Titan is Dione (1,123 kilometres across). Pandora (81 kilometres across) orbits just beyond the rings on the right of the image. Tiny Pan (28 kilometres across) sits in the Encke Gap of Saturn's A ring on the left of the imagePhotograph: JPL-Caltech/Space Science Institute/NASA