## Mars' North Pole Ice Is Far Cleaner Than Expected The planet Mars is known for its massive dust storms, dust devils, and two large polar ice caps, with its north polar cap being one of the Red Planet’s most striking features. Comprised of water ice, the north polar cap not only holds potential for being a source of water for future human missions, but it also helps researchers’ piece together past climates on Mars. But an ongoing debate within the scientific community is the ice-dust relationship at the north polar cap, specifically how much dust comprises the north polar cap compared to…