Smashed Icy Moons Cool Too Rapidly to Retain Oceans

There are more than 450 confirmed moons orbiting the eight major planets, but only a handful of them provide unique scientific value to pique the interests of the scientific community, specifically their potential for hosting life as we know it. This is due to the subsurface oceans that exist beneath icy crusts, including Jupiters Europa and Ganymede, and Saturns Enceladus. But what processes are responsible for producing these subsurface oceans, or potentially preventing them from forming in th...