Mars polar water is pure: study

A large ice cap found at Mars' northern pole is "of a very high degree of purity," according to an international study reported on Tuesday by French researchers.

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<p><a href="http://www.physorg.com/news151676005.html">Mars polar water is pure: study</a></p> <p> A large ice cap found at Mars' northern pole is "of a very high degree of purity," according to an international study reported on Tuesday by French researchers.</p>