Wednesday, March 30, 2011

Messenger



Check out the little impact crater to the left of the giant Debussy crater (bright rays). This small crater, with very dark rays, is called Matabei:



These dark rays may be material that was excavated and broadcast across the lighter surface. More interesting would be if they represent the debris of the impactor object. Either way, this represents a very rare (dozens of examples at most) phenomenon for Mercury.

Credit: NASA / JHUAPL / Carnegie Institution of Washington

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