Interiors of Ganymede and Europa
Date: 31 January 2011
Possible locations of liquid layers in the icy moons of Jupiter are shown here as a function of depth:
Cases 3 and 4 are the most probable for Europa, and cases 1 and 2 for Ganymede and Callisto.
- completely frozen;
- three-layered structures impeding any contact between the liquid layer and the silicate floor;
- thick upper icy layer (>10 km) and a deep ocean;
- very thin upper icy layer (3-4 km).
Last Update: 1 September 2019