.THE app of Bayesian contradiction to a series of lithologic parameters in an evaluation of seismic data hardly seems the stuff of headlines. However when the seismic information you are evaluating come from Mars, and also when your reasoning proposes that the very best description for them is liquid water in the pores between rocks, you have an account. There is little people thirst for even more, when it pertains to earthly scientific research, than water on Mars. Why performs the prospect provoke such pleasure-- as well as what performs this brand new investigation add to the story?