This is a radar image of a patch of desert in Namibia in southwest Africa. The black stuff is wind-blown sand. You can see long, thin dunes curving to the upper left. This is a "false color" image, which is why the color are strange! The image shows an area about 16 by 22 miles in size. Can you find any craters? Image courtesy of NASA/JPL. SIR-C radar image P-45149.

When you think you have found a crater, click on the image and find out if you were right!