Literal coolness, given that we’re talking about a moon of Saturn. Water is amazing stuff from a chemical, physical and even biochemical standpoint–unique on multiple levels, absolutely required in liquid form to sustain any life that we could ever really recognize as such.
I’ve been a big fan of Jupiter’s moon Europa for years–looks like I have another gas giant moon to add to my list!
The Salty Waters of Saturn’s Moon Hint at Life

A Cassini spacecraft image shows icy geysers spewing from the south polar region of Saturn’s moon Enceladus. The salt particles in the ice jets are the strongest evidence to date of a liquid ocean under the moon’s icy crust.
Ah, so THAT’S where Cthulhu has been hanging out!
Seriously, this is way cool. It would really be awesome if we ever managed to find other life right here inside our own solar system.