Exploring Pluto and Other Dwarf Planets

Pluto is too big to be an asteroid and too small to be a planet, so scientists call it a dwarf planet.

It's so far away from the sun that it gets no warmth at all, so it's covered in a thick layer of ice.

Readers learn fun facts such as these as they explore the world of our solar system's dwarf planets.

Informative diagrams, full-color photographs, and accessible text help readers discover more about Pluto and the other dwarf planets in our solar system.