![]() ![]() ![]() By analysing the Webb data, astronomers have determined that roughly 30 percent of the water stays within this torus, and the other 70 percent escapes to supply the rest of the Saturnian system with water. The Webb observations directly demonstrate how the moon’s water vapour plumes feed the torus, a fuzzy doughnut of water that is co-located with Saturn’s E-ring. While Cassini’s position within the Saturnian system provided invaluable insights into this distant moon, Webb’s unique view from the Sun-Earth Lagrange Point 2, 1.5 million kilometres from Earth, along with the remarkable sensitivity of its Integral Field Unit aboard the NIRSpec ( Near-Infrared Spectrograph) Instrument, is offering new context. ![]() The NASA/ESA/ASI Cassini mission spent over a decade exploring the Saturnian system, and not only imaged the plumes of Enceladus for the first time but flew directly through them and sampled what they were made of. ![]()
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