Enceladus is a tiny moon of Saturn that sprays water vapor and ice grains into space from an ocean hidden beneath its icy crust — meaning a spacecraft can sample material from an alien sea without eve

This is accurate, and a spacecraft has already done it. Enceladus, a moon of Saturn only about 500 kilometres across, has a global ocean of liquid water under a shell of ice. Through fractures near its south pole, that ocean vents continuously into space as a plume of water vapour and fine ice grains. Between […] This is accurate, and a spacecraft has already done it. Enceladus, a moon of Saturn only about 500 kilometres across, has a global ocean of liquid water under a shell of ice. Through fractures near its south pole, that ocean vents continuously into s... [5153 chars]