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Science 6 December 2002:
Vol. 298. no. 5600, pp. 1866 - 1867
DOI: 10.1126/science.298.5600.1866b
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News of the Week

PLANETARY SCIENCE:
... And an Icy Patch at Mars's South Pole

Dana Mackenzie

In a paper published online by Science this week (www.sciencemag.org/cgi/content/abstract/1080497), 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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)