Geysers on Enceladus are Powered in Part by Saturn's Gravity

The geyser jets of Enceladus don't shoot out in a continuous stream, but are more like an adjustable garden hose nozzle, says Cassini scientist Matt Hedman, author of a new paper about the workings of this fascinating tiger-striped moon. Observations from Cassini found that the bright plume emanating from Enceladus' south pole varies predictably. The