Ganymede seems to get quite a few ocean layers, stacked up with layers of ice between them. The highest amount of ice may be the crust, which might be about one hundred fifty kilometers (about 90 miles) thick. The lowest ocean level may very well be 800 kilometers (about 500 https://holdenjlmml.fitnell.com/75552784/the-2-minute-rule-for-best-moons