Chain, Chain, Chain
This image, captured by the Narrow Angle Camera (NAC), shows a number of trails of small craters. These trails, called secondary crater chains, are formed when ejecta from an initial impact are launched outward. As the ejecta fall back onto the planet's surface, they can form their own, often overlapping, small craters.
Date acquired: August 20, 2011
Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington