> Unlike the icy moons of giant planets, Pluto cannot be heated by gravitational interactions with a much larger planetary body. Some other process must be gene

> Unlike the icy moons of giant planets, Pluto cannot be heated by gravitational interactions with a much larger planetary body. Some other process must be generating the mountainous landscape. This is really exciting! There goes a theory. Charon seems to be also active, perhaps this suggests they split not so long ago? If that were the case it would be really interesting to know what hit them.