.THE app of Bayesian inversion to a variety of lithologic specifications in an assessment of seismic data hardly seems to be the stuff of headings. However when the seismic records you are assessing originated from Mars, and also when your thinking proposes that the best description for all of them is liquefied water in the pores in between rocks, you have a tale. There is actually dwarfs crave extra, when it pertains to global science, than water on Mars. Why does the possibility prompt such excitement-- and what does this brand new investigation contribute to the story?