CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planets, stars, and galaxies to the search for extraterrestrial life, CliffsQuickReview Astronomy gives you jargon-free explanations of the fundamentals ? including all the latest discoveries and theories. This guide introduces each topic, defines key terms, and carefully walks you through each sample problem step-by-step. In no time, you'll be ready to tackle the key concepts in this book such as: The history and science of astronomy. Origin and evolution of the solar system. Hertzprung-Russel diagram. Final end states of stars. Types of galaxies and their classification. In plain words and useful formats, CliffsQuickReview Astronomy provides an overview of the universe and every known type of object that exits within it, so that you can use your study time efficiently. Use this reference in any way that fits your personal style for study and review ? you decide what works best with your needs. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades. AUTHOR: CHARLES J. PETERSON, Ph.D. worked at the Carnegie Institution of Washington and at Cerro Tololo Inter-American Observatory before joining the University of Missouri in 1978. He has researched star clusters and galaxis as well as the history of astronomy. He has taught introductory and advanced astronomy courses for over 20 years.