It's quite incredible that NASA seems to just upload all the data they gather straight on to the Internet. Look at all the stuff here: https://an.rsl.wustl.edu/merb/merxbrowser/tab.aspx?t=MP I mean, this is just incredible. https://an.rsl.wustl.edu/msl/mslbrowser/tab.aspx?t=MS The whole fricking data and everything is here. One could spend a day or a year browsing. I guess this would be of maximum interest to geologists.