Out of Round

Today's VIS image shows part of a crater and its ejecta. Located in Noachis Terra, this impact crater is not the typical round shape. Instead, the rim has scallops and indentations. In most instances it is heterogeneities in the preexisting surface that deflect the impact energies and create 'out of round' craters. Tectonic faults are just one of the subsurface features capable of causing non-round craters.