.THE function of Bayesian contradiction to a variety of lithologic criteria in an analysis of seismic information hardly seems the stuff of headlines. But when the seismic information you are assessing arised from Mars, as well as when your reasoning recommends that the greatest description for them is liquid water in the pores between stones, you possess a tale. There is actually dwarfs crave even more, when it involves planetary science, than water on Mars. Why performs the possibility produce such exhilaration-- and what performs this brand new investigation add to the story?