Gravity has caused materials to move down the rim of this crater in Terra Sabaea. In this image from NASA 2001 Mars Odyssey, thinner dark slope streaks are less common than broader, lighter markings of downslope movement of materials.
Gravity has caused materials to move down the rim of this crater in Terra Sabaea. In this image from NASA 2001 Mars Odyssey, thinner dark slope streaks are less common than broader, lighter markings of downslope movement of materials.