...is just looking weirder and weirder the more data we get.
First of all, volcanism? Yup. Ice volcanos. On a tiny little world like that. Okay, they might not be volcanoes, but huge mountains with craters in the top generally turn out to be just that.
Oh, and the mountains might be floating on top of a sea of nitrogen ice. Like icebergs.
On top of that, it appears Pluto had at least six moons once...because some of them hit each other and combined. And their orbits are beyond chaotic.
What it shows? Weird stuff happens when you get far out from the system primary.