Here are the latest images from the New Horizons spacecraft:
http://pluto.jhuapl.edu/
If you look carefully, you'll notice that although the moon Charon rotates around the planet Pluto, Pluto does not remain in the center. The reason for this is that Charon is half Pluto's size and has a significant gravitational pull on Pluto. (Think of two skaters—a father and his much smaller daughter—holding all four hands on the ice and facing each other as they spin. Though his daughter will circle around her father, dad will also move in a circle of his own because his daughter has enough weight to pull him out of center.) http://en.wikipedia.org/wiki/