News of the WeekPlanetary Science

... And an Icy Patch at Mars's South Pole

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Science  06 Dec 2002:
Vol. 298, Issue 5600, pp. 1866-1867
DOI: 10.1126/science.298.5600.1866b

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In a paper published online by Science this week (, three geologists report that they have found a kilometer-wide patch of water ice at the edge of the southern polar cap. This discovery might literally be the tip of an iceberg: Some Mars scientists believe that the entire southern polar cap could be water ice, covered by a thin layer of dry ice.