Dione Against Saturn's Globe. This fine view is Dione seen against the globe of Saturn, Dec. 14th, 2004, when the NASA/ESA/Italian Space Agency Cassini-Huygens craft was preparing to an imaging passage at the moon. Dione is one of Saturn's main moons. It's seen here from 375,000 miles (603,000 km) away as Cassini imaged the moon from 50,600 miles (81,400 km). Such a picture will surely remain in the annals. see the original picture. Dione is an icy moon streaked with bright rays. One of them may be seen, left of the moon, on the larger picture. The recent Cassini passage allowed to see that such rays are high, tectonics-related ice cliffs in fact. On the other hand Dione's surface is heavily cratered, a sure sign that the surface there is old. Saturn globe, behind the moon, is seen with its distinctive bands and whirls of clouds. Although of the same nature than those at Jupiter, they are less pronounced however. Dione is 700-mile (1,120 km) wide. picture courtesy NASA/JPL/Space Science Institute