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Fraser
2012-Jun-24, 02:20 AM
The Moon may not have ever had liquid water on its surface — despite the use of the term mare, Latin for “sea”, moniker for the large regions of darker material visible from Earth — but liquid did indeed flow on the Moon in ages past… liquid rock, briefly set loose by impacts that formed [...]

More... (http://www.universetoday.com/95941/rivers-of-rock/)