A Saucerful of Secrets
The crater with the central peaks in the northeast portion of this image is located on the eastern rim of a large impact basin. Extending westward from this crater is a wrinkle ridge that may have formed due to contraction as lava that flooded the basin cooled. Scientists studying craters and large impact basins on Mercury learn more and more of the innermost planet's "secrets" as new imagery and data from MESSENGER become available.
Date acquired: July 13, 2011
Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington