Beyond Earthly Skies: Faraway Sedna
For children of Pluto's discoverer, New Horizons is a personal triumph - The Washington Post
Solar System Planets And Pluto by Detlev Van Ravenswaay/science Photo Library
How Pluto lost its place as a planet
Definition of Planet
In focus: New Horizons' crisp images shed new light on the origins of Pluto and its moons
Dwarf planet - Wikipedia
Solar system planets diagram pluto hi-res stock photography and images - Alamy
Pluto
Pluto's long, strange history — in pictures