What is a comet? Readers will learn the answer in this book! They will discover how ancient people viewed comets, the tools used to view them, and how scientists gather samples from these space speedsters. Readers will also be introduced to other natural and manmade objects zipping around the universe. Asteroids, meteorites, satellites, space probes, and more are sure to thrill! Aligned to Common Core Standards and correlated to state standards. A&D Xtreme is an imprint of Abdo Publishing, a division of ABDO.