[Paul R.]

Interesting info., but the writer (and editor) need a swift kick. How can a "moon small enough to fit inside the borders of Arizona" have a "giant ocean hidden under the moon's frozen shell"?

For point of reference, the Pacific Ocean is (depending on the data source) about 714 million cubic kilometers (171 million cubic miles) of water, and Enceladus has about 10 million cubic kilometers of water...

Also of interest is that Earth is actually rather dry, taken in total:

http://www.businessinsider.com/water-space-volume-planets-moons-2016-10

[Moonman62]

Also of interest is that Earth is actually rather dry, taken in total:

http://www.businessinsider.com/water-space-volume-planets-moons-2016-10

...

Cool article that presents data that conflicts with intuition.

Who could imagine that Pluto has almost as much liquid water as Earth?

Thanks again for a post that contrasts with many of the ignorant comments on the thread.