Enceladus: Saturnian Moon
Enceladus is one of Saturn’s inner most moons and is composed primarily of fresh clean water ice. Its southern polar region vents plumes of ice particles, water vapor and trace organic compounds out into space, a process called ‘cryovolcanism’. The ejecta from the icy volcanoes feed Saturn’s tenuous E Ring as it orbits the planet. This is an indication that the moon is still geologically active, a process supported through tidal friction with Saturn.
