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Provides an introduction to the bodies in our solar system so that young astronomers and explorers can learn to identify the nine planets and how to seek out th

Learn about our solar system in this science reader packed with NASA photos and space facts. For up-to-date information (including about Pluto and its fellow dw

What if Earth had several moons or massive rings like Saturn? What if the Sun were but one star in a double-star or triple-star system? What if Earth were the o

This exploration of the sun, moon and stars is part of a series introducing children to the wonder of the world around them. It has two reading levels, with a s