Galilean Moons | Vibepedia

The Galilean moons—Io, Europa, Ganymede, and Callisto—are Jupiter's four largest satellites, first spotted by Galileo Galilei in 1610, revolutionizing our view of the solar system. Each boasts unique geology shaped by tidal forces, from Io's explosive volcanoes to Europa's potential subsurface ocean. These worlds showcase extreme diversity, fueling missions like JUICE to probe their secrets.