Moons: Active Worlds

chart showing cross-sections of four moons, with interior and surface features labeled
June 19, 2019
CreditJ Olmsted (STScI)
Language
  • english

Jupiter’s moons Io and Europa, and Saturn’s moons Enceladus and Titan, show remarkable geological activity for their small size, with features ranging from volcanoes and water plumes to possible subsurface oceans.