Water on Saturn's Moon Enceladus?

The Guardian asks Is there life on a moon of Saturn? "Dark, organic-rich material is splattering the face of Iapetus as it orbits Saturn, like a car whose windscreen is sprayed with water from other cars on a rainy day.'Dusty material spiralling in from outer moons [of Saturn] hits Iapetus head-on, and causes the forward-facing side of Iapetus to look different than the rest of the moon,' said Tilmann Denk, a Cassini team member based at the Free University, Berlin. Which moon is responsible for imposing this indignity on Iapetus remains unknown, however." Images are here.