Special
processing has brought out surface detail in this Voyager 2 image
focusing on the large crater on Tethys. The spacecraft took this
photograph Aug. 25, when it was 826,000 km from the icy moon of
Saturn.
Here, resolution is about 15 km. The crater has been flattened by
the flow of softer ice and no longer shows the deep bowl shape characteristic
of fresh craters in hard, cold ice or rock. It appears to have been
formed early in in Tethys' history, at a time when its interior
was still relatively warm and soft.
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