Just as a Chihuahua is still a dog, these ice dwarfs are still planetary bodies. The misfit becomes the average. The Pluto-like objects are more typical in our solar system than the nearby planets we first knew.” -Alan Stern
The Pluto story just gets better and better. Although the flyby of July 2015 lasted only a few hours, the full suite of data taken took 16 months to transmit back to Earth. That finally completed a few weeks ago, and we not only have a complete high-resolution map of Pluto’s surface, we also have topological, chemical/molecular and gravitational data covering the surface.
This means we can analyze Pluto’s geological features in terms of the phyiscs and chemistry we know, and draw conclusions based on that. The most striking feature might be Pluto’s heart, but it looks like the heart’s formation and evolution dragged the whole planet over. Best of all, the whole process may still continue to evolve.