Created by author Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section describes: the celestial sphere, coordinate systems, the motion of the...

This website provides free access to 22 interactive science labs with downloadable simulations for use in grades 4-9. Half of the simulations are related to Astronomy and half pertain to general topics such as simple...

This paper, presented at the 2002 Physics Education Research Conference, discuss the development of the Lunar Phases Concept Inventory, as well as results from field-testing the instrument at five institutions across the...

This pair of web pages, authored and curated by David P. Stern, describes early calculations of the Earth-Moon distance by Greek astronomers. Using lunar and solar eclipses, the astronomers Aristarchus and Hipparchus...

This site, created by John Walker of Formilab -- Switzerland, allows users to view the earth and moon, and daylight and night regions, from a wide range of viewpoints. These include from the sun, the moon, the earth, at...