Click here for public access. Provides access to scholarly and technical literature in three major areas: 1) astronomy and astrophysics (approximately 330,000 abstracts; 2) instrumentation(approximately 460,000 abstracts); and 3) physics and geophysics (approximately 220,000 abstracts). In addition, the database has extended the abstract service to include links to scanned images of over 40,000 journal articles for articles appearing in most of the major astronomical journals. Literature types indexed are mostly journal articles, conference proceedings, NASA reports, and many Ph.D. theses.

Coverage: 1975 - present, updated monthly.