.THE app of Bayesian inversion to a variety of lithologic criteria in an assessment of seismic records barely seems the stuff of headings. But when the seismic information you are assessing originated from Mars, as well as when your reasoning advises that the most ideal explanation for all of them is actually liquid water in the pores between rocks, you have an account. There is actually little people thirst for extra, when it pertains to planetary scientific research, than water on Mars. Why does the prospect prompt such enthusiasm-- and what does this brand new study add to the tale?