re: Factor in topography too. *Yes, to all that you said, Robert.
It wouldn't hurt to do some seismography testing on the Martian 'surface' either.... just in case Mars has some heart beat left.
Opportunity, Sol 38:
I wish we could see what the microscopic imager saw in Sol 37! Sol 38's are in. I'm still wondering about that 'macaroni' that is *imbedded* in that crack (missed being touched by the RAT by nanometers!). Anyways, good news... what was once wet with H20 was once wet with H20.
