Astronomy

Science Explorer (SciX) from the Smithsonian Astrophysical Observatory (SAO) has expanded the Astrophysics Data Service (ADS). Its bibliographic collections now cover: Astronomy (including astrophysics, heliophysics, and planetary science), Physics, Earth science, Biological & physical science, and General science (including chemistry, computer science, and engineering in support of our core disciplines).

Scholarly journals and news in physics, astronomy, and related fields including acoustics and vacuum science published by the American Institute of Physics. Selected access 1929-present.

Journals and ebooks in physics, astronomy, and related sciences. Selected access 1849-present.

Open access pre-print articles for Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance, Statistics, Electrical Engineering and Systems Science, and Economics. Established 1991.

Multidisciplinary collection of citations and abstracts for scholarly journal articles, proceedings, data sets, and other resources. Has a tool for citation analysis. Includes the Arts & Humanities Citation Index, Science Citation Index, Social Science Citation Index, among others. 

Citations and abstracts to the North American and international geoscience literature including journal articles, books, maps, conference papers, reports, and theses. Includes all publications of the U.S. Geological Survey. Coverage: 1669-present.

Reference data related to chemistry, physics, astronomy, mathematics, and other fields of science.

A collection of United States government technical reports, scientific reports, proceedings, technical papers and government documents. Coverage: 1900-present.

The database has over 2.1 million full-text dissertations and theses. It also contains indexing of 3.8 million graduate works. Primarily US, UK and Ireland but increasingly from other countries. Designated as an official offsite repository for the U.S. Library of Congress. Coverage: 1861-present.