.THE function of Bayesian inversion to a series of lithologic guidelines in an assessment of seismic records rarely seems to be the stuff of headlines. Yet when the seismic records you are actually determining come from Mars, and also when your thinking proposes that the most effective description for all of them is liquefied water in the pores in between stones, you have a story. There is actually dwarfs crave much more, when it comes to global scientific research, than water on Mars. Why carries out the possibility produce such enjoyment-- and also what does this new study include in the account?