.THE function of Bayesian contradiction to a stable of lithologic criteria in an assessment of seismic data hardly seems to be the stuff of headlines. But when the seismic information you are determining originated from Mars, and when your thinking suggests that the greatest illustration for all of them is actually liquefied water in the pores between rocks, you possess a story. There is little people crave even more, when it relates to planetary science, than water on Mars. Why performs the possibility produce such pleasure-- and also what does this brand new research contribute to the account?