Messier and Messier A - 9 km wide
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Something struck here at a vey low angle (less than 15 degrees) coming in fast from the east. It struck to form Messier, then skipped a couple of kilometers before striking again to form Messier A. Both craters are elongated in the direction of the blow. Note the nice lava wrinkles near the shadow.
Image: September 10, 2006
