Ocean more likely
Hi All
Just to be a contrarian I personally think that Triton is more likely to have an ocean than Europa - albeit an exotic one - because it's more likely to have ammonia present to act as an anti-freeze.
Here's an article to that effect...
Icy Oceans
plus a follow up on ice phases...
Ice Mantles
...personally I think the hemispherical melting that Triton has undergone is an anomaly worth another look. Also the cryovolcanism and the atmosphere have got to be more interesting than airless Europa. However I have a soft spot for the Galileans, especially Ganymede.
Why should we expect the US to go it alone? The ESA has some interesting Pluto Orbiter designs too.
Adam
