Icy moons circling the outer planets may be far more dynamic. New research suggests that when heat from tidal forces melts their ice shells from below, the sudden drop in pressure could cause hidden oceans to boil beneath the surface.
There are several frozen moons in our solar system, orbiting the gas giants. Some of them have liquid water under the surface and deep down in the dark, the ocean may be boiling.
Saturn's small, crater-covered moon Mimas may have a vast ocean under its thick icy surface, according to a new paper.
