Saturn's moon

Flying past Saturn’s moon Dione (left), Cassini captured this view with two smaller moons, Epimetheus and Prometheus, near the planet’s rings. Credit: NASA/JPL-Caltech/Space Science Institute.

The image was taken with Cassini’s narrow-angle camera during the spacecraft’s flyby of Dione on December 12, 2011. This encounter was the spacecraft’s closest pass of the moon’s surface.