MESSENGER Reveals Mercury Geological History

Shortly following NASA MESSENGER spacecraft closest approach to Mercury on January 14, 2008, the spacecraft Narrow Angle Camera NAC instrument acquired this image as part of a mosaic that covers much of the sunlit portion of the hemisphere.

Shortly following NASA MESSENGER spacecraft closest approach to Mercury on January 14, 2008, the spacecraft Narrow Angle Camera NAC instrument acquired this image as part of a mosaic that covers much of the sunlit portion of the hemisphere.