Many impact craters -- the record of the collision
of cosmic debris -- are shown in this Voyager 1 color mosaic of
Saturn's moon Dione. The largest crater is less than 100 kilometers
(62 miles) in diameter and shows a well-developed central peak.
Bright rays represent material ejected from other impact craters.
Sinuous valleys probably formed by faults break the moon's icy
crust. Images in this mosaic were taken from a range of 162,000
kilometers (100,600 miles) on Nov. 12, 1980. The Voyager Project
is managed for NASA by the Jet Propulsion Laboratory, Pasadena,
Calif. (P-23113)
