JWST spots biggest water plume yet spewing from a moon of Saturn

The James Webb Space Telescope (JWST) has spotted Saturn’s moon Enceladus spraying out a huge plume of very cold water vapour, far bigger than any previously seen there. The enormous cloud could carry the chemical ingredients of life: the salty ocean that lies beneath Enceladus’s icy surface is a possible haven for organisms, which could be sustained by hydrothermal vents.