Newest Pluto pictures show jumbled mountains, possible dunes
![Newest Pluto pictures show jumbled mountains, possible dunes](http://images.worldnow.com/AP/images/8776219_G.jpg)
The spigot has opened again, and Pluto pictures are pouring in once more from NASA's New Horizons spacecraft.
The spigot has opened again, and Pluto pictures are pouring in once more from NASA's New Horizons spacecraft.