Solar System (Scholastic Science Readers)

A simple explanation of the sun, moon, and the nine planets, with additional facts about asteroids and space exploration. Learn what the sun is made of, and how the sun's gravity makes the planets orbit around it. Find out how far each planet is from the sun, how many moons it has, and what it looks like up-close!Why study the solar system? Space exploration could explain the history of the universe or reveal whether there is other life out there!