Ganymede is the only real known moon with its own magnetic field, which causes auroras akin to those on this planet. The auroras sway when Jupiter’s magnetic industry fluctuates, partial proof for a substantial saltwater ocean. Kerberos was found in 2011, and Styx was located in 2012, each by Hubble https://moons15936.imblogs.net/84317133/best-moons-things-to-know-before-you-buy