Enceladus is a small moon orbiting Saturn, notable for possessing a subsurface global ocean of liquid water. This ocean is believed to interact with a rocky core, suggesting potential hydrothermal activity at the seafloor. The presence of plumes of water vapor and ice particles, which periodically erupt from fissures near the moon's south pole, have been observed. Analysis of these ejected materials suggests the presence of dissolved salts and chemical compounds, indicating the potential for chemical disequilibrium and supporting the hypothesis of an internal, energy-driven geological system.