.THE APPLICATION of Bayesian inversion to a variety of lithologic specifications in an assessment of seismic data rarely seems to be the stuff of headings. But when the seismic data you are actually examining stemmed from Mars, as well as when your thinking suggests that the greatest illustration for all of them is actually fluid water in the pores in between stones, you have a tale. There is actually dwarfs thirst for more, when it comes to planetal science, than water on Mars. Why performs the prospect prompt such excitement-- and what does this brand-new investigation include in the account?