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Government Information on the Great American Eclipse: Eclipse Science

This guide provides links to Government Information about the Great American Eclipse that will occur on August 21, 2017

Eclipse Glossaries

NASA Eclipse Glossary - NASA has prepared a glossary of eclipse related terms in 4 languages, English, Spanish, Chinese and French.

AAS Eclipse Glossary - the American Astronomical Society also has a glossary of eclipse terms.

Astronomy Magazine's Eclipse Glossary - Astronomy Magazine has a glossary that includes diagrams and photographs.

The Science of Eclipses

NASA Total Eclipse 2017 - This website from the National Aeronautics and Space Administration (NASA) contains a wide variety of information, including the science of a solar eclipse, a glossary, educational materials and many other resources, including maps and images that can be downloaded and a guide for libraries.

How Eclipses Work - This website from the NASA explains the science of a solar eclipse. It includes links to animations that explain the geometry of an eclipse and information on the types of eclipses.

NASA Eclipse Fact Sheet - This 2-sided PDF document gives information about the August 21, 2017 solar eclipse, activities and easy-to understand safety information.

Getting a Feel for Eclipses - this website from NASA's Solar System Exploration Research Virtual Institute explains the science of the August, 2017 solar eclipse. The site's content is also available as a tactile book for the visually impaired.

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