December 17, 2004
The conspicuous crater on the surface of Saturn's moon Mimas is seen in this image taken by Voyager. The massive crater, whose proportionate size (approximately 100 kilometers or 60 miles) is about one-quarter of the satellite's diameter (390 kilometers or 235 miles), is without precedent among the explored objects of the solar system. The impact that formed the crater was probably almost large enough to shatter Mimas into two or more fragments.
For higher resolution, click here.