Ganymede is the sole recognized moon with its possess magnetic industry, which results in auroras akin to Those people on this planet. The auroras sway when Jupiter’s magnetic industry fluctuates, partial evidence for a big saltwater ocean. Earth’s oceans, by comparison, only stretch down about 11 kilometers (below seven miles) https://bestmoons93715.bloggazza.com/33698084/not-known-details-about-best-moons