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Mar2-07, 12:07 AM
P: 33
Quote Quote by stevebd1 View Post
Europa's atmosphere probably wouldn't change much because of its weak gravity but Ganymede, which is 3/4 the size of mars, has a gravity slightly greater than Titan (1.428 m/s^2, Titan is 1.35) and a magnetosphere & Ionosphere, might go through quite a change. Terretrial observations have suggested that Ganymede may have a substantial amount of oxygen trapped under the surface which might be as large as the atmosphere on Mars.

Hi, Stevebd1. Hypothetically, would some of the melted ice evaporate to form clouds (provided that there were enough oxygen traped under the surface), reducing the sea’s volume? It has silicate rock under there somewhere. Do we know that there aren’t rock formations relatively close to the surface of the ice crust i.e. did Galileo’s data include all of Ganymede's surface area, or did it miss some when it passed? Thanks.