Four Moons of Saturn

An image of four moons of Saturn passing in front of their parent planet in seen this image taken by NASA's Hubble Space Telescope February 24, 2009 and released by NASA March 17, 2009. In this view, the giant orange moon Titan casts a large shadow onto Saturn's north polar hood. Below Titan, near the ring plane and to the left, is the moon Mimas, casting a much smaller shadow onto Saturn's equatorial cloud tops. Farther to the left, and off Saturn's disk, are the bright moons Dione and the fainter Enceladus. REUTERS/NASA, ESA, and the Hubble Heritage Team