Mars Index - Top Ten MER Images - Top Raw Images
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On the right side of this image, thin vertical lines and grooves cover the flat surface of a rock. On the left side, the surface of the same rock is smooth. A short, abrupt edge about an inch or so deep separates the two faces of the rock. The entire rock is dotted with tiny, submillimeter-size holes.
Dramatic Draping
Terrain undulates while a stacked rock casts a deep shadow.

Image Credit: NASA/JPL/Cornell