New research published in the journal, Nature Astronomy, is the first to investigate Saturn’s moon Enceladus and its ability to produce sustained hydrothermal activity that has been ongoing for billions of years. The 3D models that have been published indicate that this small moons warm subterranean global ocean requires a wet and porous core. Enceladus has geysers in its southern region which spew jets of water vapor, literally blowing its ocean into space.