Pluto's Icy Exterior May Conceal An Ocean - New Scientist 9/16/11
Didn't see this one coming. Scientists from the University of California announce some stunning new calculations that show an ocean under the surface may be a possibility. Apparently radioactive decay of potassium in the core of the dwarf planet may create enough heat to harbor liquid oceans. NASA's New Horizons Probe may give us some more details when it does a fly-by in 2015. Until then, we will speculate and dream of the possibilities. Pluto may have some spunk after all!