The knobby, pitted terrain is caused when ice is deposited and then sublimates over and over again.
from HiRISE: High Resolution Imaging Science Experiment http://ift.tt/1Y2qZ9k
via IFTTT
The knobby, pitted terrain is caused when ice is deposited and then sublimates over and over again.
from HiRISE: High Resolution Imaging Science Experiment http://ift.tt/1Y2qZ9k
via IFTTT