.THE app of Bayesian contradiction to a series of lithologic criteria in an evaluation of seismic information rarely seems to be right stuff of headlines. Yet when the seismic data you are evaluating arised from Mars, as well as when your thinking proposes that the greatest explanation for all of them is actually fluid water in the pores between rocks, you have a tale. There is actually dwarfs crave much more, when it relates to nomadic scientific research, than water on Mars. Why performs the prospect produce such exhilaration-- and what does this brand new research include in the account?