Saturn's moon Enceladus has 'churning' ocean currents buried beneath its 12 miles of ice, according to a new study. It's already known that Enceladus – one of Saturn's 82 moons – hides water beneath its shiny, icy surface. But experts at California Institute of Technology (Caltech) think ocean currents are flowing on Enceladus a bit like those near Antarctica, driven by salty water. They've based their estimations on computer modelling ...