Conversation so far:
which one of saturn's moons has water
Measurements of Enceladus's libration as it orbits Saturn suggests that the entire icy crust is detached from the rocky core and that a global ocean is present beneath the surface.
how big is enceladus
Enceladus is about 500 kilometers in diameter.

Question: what is the moon named after
Self-contained rewrite: what is enceladus named after