Icy Moon
Icy moons are believed to be a common class of natural satellites or planetoids with surfaces composed mostly of ice. An icy moon may harbor an ocean underneath the surface, and possibly include a rocky core of silicate or metallic rocks. It is thought that they may be composed of ice II. The prototype of this class of object is Europa.
Icy moons warmed by tides may be the most common type of object to have liquid water, and thus the type of object most likely to have water-based life.
Some icy moons exhibit cryovolcanism, as well as geysers. The best studied example is Enceladus.
Read more about Icy Moon: Icy Moons, Small Icy Moons
Famous quotes containing the words icy and/or moon:
“If we shake hands with icy fingers, it is because we’ve burnt them so hatefully before.”
—Logan Pearsall Smith (1865–1946)
“The Moon for all her light and grace
Has never learned to know her place.”
—Robert Frost (1874–1963)