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Fraser
2008-May-07, 05:30 PM
No, not that kind of snow, but scientists say deep inside the planet Mercury, iron “snow” forms and falls toward the center of the planet, much like snowflakes form in Earth’s atmosphere and fall to the ground. The movement of this iron snow could be responsible for Mercury’s mysterious magnetic field, and Mercury may [...]

More... (http://www.universetoday.com/2008/05/07/snow-on-mercury/)