In this episode, we'll be talking to Dr. Baptiste Journaux. Baptiste is a NASA Postdoctoral Fellow at the Earth and Space Science Department of the University of Washington and he is also affiliated to the NASA Astrobiology Institute. His work is focused on studying the physics of deep oceans and ice mantle of icy moons and possible water-rich exoplanets. In other words, he is studying high-pressure sea-water and looks if life could exist in extraterrestrial oceans with pressure many times greater than the one found on Earth at the bottom of the Mariana trench, 11km below sea level. So this is going to be a science episode, specifically on planetary geophysics.