Any report of ammonia yet? It has been predicted that eruptions might happen on this icy moon due to its resonance, creating a slightly eccentric orbit which generates internal heat from tidal action. Aqueous ammonia doesn't freeze unitl 176K, so a viscous liquid state is deemed possible, if not likely.

__________________
Lighten up! This is a stellar board! Author: duh.

"The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly.