The sun, the planets, the moon-they are all parts of our solar system. This simple book invites you to explore the solar system and everything that's in it. Find out about asteroids, comets, the Kuiper Belt, and the faraway Oort Cloud. Discover how the solar system was formed and where we fit in here on Earth. Colorful photos and fast facts help you learn even more about the solar system, and a fun final activity lets you use what you've learned in a creative way. Book jacket.