.THE function of Bayesian inversion to a stable of lithologic guidelines in an evaluation of seismic data hardly seems to be right stuff of headlines. But when the seismic information you are evaluating stemmed from Mars, and when your reasoning suggests that the most ideal illustration for all of them is fluid water in the pores between stones, you possess an account. There is actually little people thirst for much more, when it comes to worldly scientific research, than water on Mars. Why carries out the possibility produce such enthusiasm-- and what does this brand-new analysis add to the tale?