For historical information, particularly check numbers 4000 and higher, which are in a special NASA history subseries. Resources on the Web Go to Resources in the Library GPO Browse Topics. This listing of links to government sites is by broad subject. This is an online version, produced by the U.S. Naval Observatory, of the comprehensive star catalog begun over 100 years ago as a cooperative effort among international astronomers. Positions are given for over 4 million stars, some as faint as the 13th magnitude.
Data files are quite large but can be retrieved in compressed formats.
It offers online access to many reports and other publications, regulations and licensing information. Jet Propulsion Laboratory Technical Reports Server . Reports are in PDF format. The major space-related agency in the government, NASA's presence on the Web is voluminous. There are also links off the main page to educational resources and scientific and technical information, which is a collection of links to NASA's technical reports collections.