Signs of Flowing Water on Mars 1 2 3 4 5 6 7 8 9 10 Fresh Crater with Light-Toned Ejecta While most of the new impact craters found on Mars by Mars Global Surveyor have dark ejecta patterns, a few of them also have light-toned ejecta, indicating that the impacting meteorite excavated to a depth where a light-toned material was present. This crater is in Arabia Terra. + Full image and caption     Jet Propulsion Laboratory    California Institute of Technology