I don't think Saturn's rings will disappear anytime soon, but this tells us how the rings are evolving and how long they might last.

In a sense Saturn is almost like a miniature solar system.

We think the core is made of liquid hydrogen and helium.

We're inferring that there is a liquid water reservoir under the surface and it's erupting in a geyser-like fashion, maybe like the Yellowstone geysers you would see.

This could be one of the biggest discoveries of the decade.

We call this 'Cold Faithful'. The moon is one thousandth as big as our moon and has one, one-hundredths of Earth's gravity.