Europa as a World

twomodels.jpg (50019 bytes)
two competing models of Europa's interior

Europa has:

Europa's surface has very few impact craters, implying that its surface is fairly young.  The ice at the surface has a fluffy, or porous, texture.   Sublimation erosion (erosion by the sublimation of water and other volatiles into space) is probably responsible.

Sulfur dioxide has been detected on the surface; it probably was ejected by Io's sulfur geysers.

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