Prentice Hall website for Astronomy: A Beginner’s Guide to the Universe 3rd ed.
Animations, illustrations, and good practice questions. More excellent links.
Space and astronomy information, activities, and other cool resources.
Tool that helps one see and identify artificial satellites. Input your location and you get tables that tell where and when to look for satellites that are visible from your location.
North Carolina School of Science and Math (NCSSM)
Physics and astro information, including more excellent links.
NASA’s Spacelink Page
An Information System For Educators
The University Of North Carolina At Chapel Hill’s Morehead Planetarium
A great astronomy site maintained by the publishers of Sky and Telescope magazine.
A publication for amateur astronomers, it contains columns on sky viewing, reader-submitted astrophotographs, and articles on astronomy and astrophysics for general readers.
Space and astronomy news.