From rocky asteroids drifting through the asteroid belt to glowing comets streaking across the night sky, small space objects play a big role in our solar system. This book introduces readers to the differences between asteroids, comets, and meteors, explaining what they are made of, where they are found, and how they travel around the Sun. Clear, accessible text explores why comets form bright tails, what causes a meteor to flash across the sky, and how meteorites sometimes reach Earth's surface. Readers will discover how scientists track and study these fascinating objects and what they reveal about the early history of our solar system. With clear, straightforward language and vibrant photos, this book supports state and national science standards for learners in grades 3-5.