Dwarf planet - Wikipedia
It's Tombaugh Time: New Horizons Mission Thrills Pluto's First Family
The solar system and pluto
New Horizons: 10 facts about Nasa's astonishing Pluto mission and beyond, Pluto
Guide to Dwarf Planets: Ceres, Pluto, Eris, Haumea and Makemake for Kids - FreeSchool
3 Ways to Draw the Solar System - wikiHow
A Friend For Pluto: Astronomers Find New Dwarf Planet In Our Solar System : The Two-Way : NPR
Pluto may reveal secret of Earth's creation
A Field Guide to the Solar System - WSJ.com