A plume of water vapor jetting from the south pole of Saturn’s moon Enceladus stretches 20 times the size of the moon itself, feeding a vast torus around the ringed planet. Inset: Enceladus as imaged by the Cassini orbiter. Image: NASA, ESA, CSA, STScI, and G. Villanueva (NASA’s Goddard Space Flight Center). Image Processing: A. Pagan (STScI)
Using the sensitivity of the James Webb Space Telescope, astronomers have managed to detect a vast plume of water vapor spewing from the southern pole of Saturn’s moon Enceladus, a jet extending nearly 10,000 kilometers (6,000 miles) and feeding a previously detected torus circling the entire planet.

