Phoenix Site on Mars May be in Dry Climate Cycle Phase

(PhysOrg.com) -- The Martian arctic soil that NASA's Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough to modify the chemistry, producing effects that persist through the colder times.

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<p><a href="http://www.physorg.com/news148581442.html">Phoenix Site on Mars May be in Dry Climate Cycle Phase</a></p> <p>(PhysOrg.com) -- The Martian arctic soil that NASA's Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough to modify the chemistry, producing effects that persist through the colder times.</p>