The huge watery cloud spurting from Enceladus could carry the ingredients for life farther into space than previously known
The James Webb Space Telescope has spotted Saturn’s moon Enceladus spraying out a huge plume of water vapour, much bigger than any previously seen there. This enormous cloud might contain the chemical ingredients of life, escaping from beneath the moon’s icy surface.
Rare ocean world Enceladus excites astrobiologists because it is one of the few ‘ocean worlds’ in the Solar System, making it one of the best places to look for extraterrestrial life. The salty ocean that lies beneath Enceladus’s outer covering of ice is a possible haven for living organisms, which could be sustained by chemical energy at hydrothermal vents on the ocean floor.
Enceladus at a glance On 9 November 2022, JWST peeked briefly at Enceladus. Just 4.5 minutes’ worth of data revealed the enormous, very cold plume of water vapour. The forthcoming paper will quantify how much water is spraying out and its temperature, Faggi said. But the plume is likely to be of low density, more like a diffuse, cold cloud than a damp spray.
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