Check this shot out from today
This looks very much like a chunk got tossed to this spot. Notice what seems to be light streaks (you're never quite sure, depending on the filter), typical of disturbed Mars soil.
Space/Science » in reply to It's just a secondary
This looks very much like a chunk got tossed to this spot. Notice what seems to be light streaks (you're never quite sure, depending on the filter), typical of disturbed Mars soil.