07-26-2015, 04:05 AM
(07-16-2015, 10:10 PM)Cray Wrote: Interesting: for all the tumultuous terrain, there's not a lot of craters on Pluto or Charon. Those are very young surfaces.
If you say so. I had been wondering what the incidence of cratering per millennium way the heck out there was and thinking that our inner-system standards for judging age by craters might not be accurate.