Smooth Floor in Copernicus Crater
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Smooth Floor in Copernicus Crater

December 5, 2012
With the exception of recent impacts (such as this one) into the floor material of Copernicus, much of the northwestern floor of Copernicus appears smooth and relatively featureless (upper right corner). This region on the crater floor appears similar to mare basalt flows, but studies show that volcanism has not shaped the landscape of Copernicus' interior. Instead, it is possible that a vast volume of impact melt was created during impact and cooled differentially across the crater floor such that some areas appear smooth while others are hummocky. LROC NAC M135317661L, image width is 520 m. Credit: NASA/GSFC/Arizona State Unversity

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