.THE APPLICATION of Bayesian inversion to a stable of lithologic guidelines in an evaluation of seismic data hardly appears the stuff of headlines. However when the seismic records you are actually analyzing come from Mars, as well as when your reasoning recommends that the best explanation for them is actually liquid water in the pores between stones, you possess a story. There is actually dwarfs crave much more, when it concerns wandering scientific research, than water on Mars. Why performs the possibility prompt such excitement-- and what does this new analysis include in the account?