AN ANCIENT RIVER DELTA lies at right foreground inside Eberswalde Crater. This view looks south, with Holden Crater in the distance. Exploring the delta's sediments would be a planetary geologist's dream, but landing the Mars Science Laboratory rover safely there may be too difficult given the rough terrain. Click on the image to download a larger version (1.4MB).

Image credit: NASA/JPL/Arizona State University, R. Luk (vertical exaggeration about 2x)