Also available for downloading from NASA ESE . Teacher guides accompany some films. NSTA Special Publications Catalog Catalog with Earth and space science materials. Online Version . Sky Publishing Catalog Catalog of a wide variety of items of interest to the amateur astronomer, from beginners to the more experienced observer.
Bulk discounts are available for educators on some items.
Online Version . Sky and Telescope Astronomical Directory Listings by state of astronomy clubs, bulletin boards, hotlines, observatories, museums, planetariums, dealers, and manufacturers of space-related materials.