Earlier this month the European Space Agency posted some high resolution images taken by the ESA Mars Express Orbiter of the ice covered oddity that is Promethei Planum. The images are striking and gorgeous, and depict the seasonal ice coverage of this cratered area that measures as deep as 3,500 meters in places. In the image below on the right is an impact crater, partially covered in ice, that measures roughly 100 km wide and 800 meters deep.
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