http://www.newscientist.com/article/dn26166-europas-icy-plate-tectonics-may-support-life.html?utm_source=NSNS&utm_medium=SOC&utm_campaign=hoot&cmpid=SOC%7CNSNS%7C2013-GLOBAL-hoot#.VA7ygIaUfjA
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http://www.newscientist.com/article/dn26166-europas-icy-plate-tectonics-may-support-life.html?utm_source=NSNS&utm_medium=SOC&utm_campaign=hoot&cmpid=SOC%7CNSNS%7C2013-GLOBAL-hoot#.VA7ygIaUfjA