Of course, if it had been the Geometric Nucleus...
I had to look back at the new Mercury pictures when I heard "minimal" cratering, but in looking (http://www.planetary.org/news/2008/0118_MESSENGERs_First_Mercury_Flyby_Highly.html) I did become intrigued on picking up that there are smoother patches. My own guess is that there have been lava flows at some point filling in the older craters, as with our moon, but I suppose I'll have to wait and watch for further commentary.
no subject
I had to look back at the new Mercury pictures when I heard "minimal" cratering, but in looking (http://www.planetary.org/news/2008/0118_MESSENGERs_First_Mercury_Flyby_Highly.html) I did become intrigued on picking up that there are smoother patches. My own guess is that there have been lava flows at some point filling in the older craters, as with our moon, but I suppose I'll have to wait and watch for further commentary.