Liquid water on Europa

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Two possible models of the interior of Europa

Jupiter's moon Europa probably contains liquid water. The laws of electromagnetism stipulate that a varying magnetic field induces a magnetic field if the body withing the varying field is conductive. Europa is within Jupiter's magnetic field and the Galileo probe's measurements of Europa's induced magnetic field suggest there is a global conductive layer near the icy surface. The best possibility to explain this would be a below surface salty ocean.[1]



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{{Radiation astronomy resources}}