What if it isn't water...
...but the movements of the very fine particles in the regolith itself? Otherwise known as granular flows.
http://www.zwire.com/site/news.cfm?newsid=13282379&BRD=1395&PAG=461&dept_id=216620&rfi=8
Space/Science » in reply to This is a little out of my field, but...
...but the movements of the very fine particles in the regolith itself? Otherwise known as granular flows.
http://www.zwire.com/site/news.cfm?newsid=13282379&BRD=1395&PAG=461&dept_id=216620&rfi=8