Gullies in Southern Winter
Crisp details in a suite of mid-latitude gullies on a crater wall are captured in this Mars Global Surveyor Mars Orbiter Camera view obtained in southern winter on Oct. 12, 2006. During southern winter, shadows are more pronounced and the atmosphere is typically quite clear. These gullies, which may have formed in relatively recent Martian history by erosion caused by flowing, liquid water, are located in a crater on the east rim of Newton Crater near 40.4°S, 155.3°W. Sunlight illuminates the scene from the upper left. The picture covers an area about 3 km (1.9 miles) wide.
Image credit: NASA/JPL/Malin Space Science Systems