.THE APPLICATION of Bayesian contradiction to a stable of lithologic specifications in an evaluation of seismic data rarely seems to be the stuff of headings. Yet when the seismic information you are actually evaluating originated from Mars, and also when your reasoning recommends that the best explanation for all of them is actually liquid water in the pores between stones, you possess a story. There is dwarfs thirst for extra, when it pertains to worldly scientific research, than water on Mars. Why performs the prospect prompt such enthusiasm-- and also what performs this new investigation include in the story?