An eclipse occurs when one celestial body such as a moon or planet moves into the shadow of another celestial body, or when one celestial body passes between two celestial bodies. This book explains the different types of eclipses, why eclipses are important astronomical phenomena to study, and the scientific history of studying eclipses. A graphic organizer presents information and helps readers understand complex topics, while primary sources in the form of historic images grab readers' attention

Mode of access: World Wide Web