Our World: Pluto – Our First Dwarf Planet
With more powerful telescopes, scientists are discovering smaller objects in our solar system. Find out how scientists now classify planets. See how NASA's robotic spacecraft, New Horizons, will help us learn more about the dwarf planet Pluto and similar objects in the Kuiper Belt.
Background Information
Grades K through 5
- NASA New Horizons
- NASA Pluto
- NASA Pluto Fact Sheet
- Space Place All About Pluto
Grades K through 8
- NASA By the Numbers: Pluto
- NASA Five Years after New Horizons' Historic Flyby, Here Are 10 Cool Things We Learned About Pluto
- NASA Galleries: Pluto
- NASA Overview: Pluto Moons
- NASA Pluto Flyby -- The Story of a Lifetime
- NASA What Is Pluto?
- NASA JPL What Is a Dwarf Planet?
Activities
Grades K through 5
Grades K through 8
- NASA In Depth: Pluto
Mathematics
Grades K through 5
- SpaceMath@NASA Planet Fractions and Scales
Grades K through 8