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TODAY’S THEMIS IMAGE: Half a crater in western Arabia Terra:

Today’s THEMIS image covers a region in western Arabia Terra, which contains two interesting craters. The eastern floor of the largest crater seen in most of this image is bumpy and ridged in places and relatively smooth in regions. Careful examination shows that this crater floor contains layered material. This is best seen in the lower portion of this crater. The larger of the two craters located to the lower right also contains layered materials.