This image from Cassini's radar instrument shows impact crater Ksa, with a diameter of 30 kilometers (19 miles), on the surface of Saturn's moon Titan. The difference in overall appearance between this crater, which has a central peak, and those without, such as Sinlap, indicates variations in the conditions of impact, thickness of the crust, or properties of the meteorite that made the crater. The dark floor indicates smooth or highly absorbing materials. Credit: NASA/JPL
