Garmaine asked 4 years ago
This presentation of the Program of the Second MSL Landing Site Workshop shows an image of a "crater" near the equator that is 2.4 km wide and 750 meters deep !
On the Mars Image explorer you can zoom in on the floor of this possible collapse feature and inspect the polygonal patterned ground.
Although on Wikipedia I couldn't find any pattern quite like this, could this mean there's ice in the subsurface of the floor of this "crater"?
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