Scopus
Index to scholarly material in all the sciences; useful for
locating articles that cite earlier publications.
Academic Search Complete
Index to both popular and scholarly journals in many
subject areas, including astronomy.
Many full-text articles.
Compendex/Engineering Village 2
A primary index for the physical sciences and engineering. Some major
astronomy journals indexed only through 1997. Includes some full-text articles.
Institute of Physics (IOP) Electronic Journals
Access to all IOP journals. Scholarly, full-text articles available from
as early as 1968 to the present.
