Fysiikka

The SAO/NASA Astrophysics Data System (ADS) is a digital library portal for researchers in astronomy and physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant.

Euroopan eteläinen observatorio ESO (European Southern Observatory) on Euroopan johtava tähtitieteen organisaatio ja maailman tieteellisesti tuloksekkain tähtitieteellinen tutkimuskeskus.

FINCA practises and co-ordinates Finnish high quality research in fields of astronomy with European Southern Observatory (ESO).

Free service provided by the American Association of Physics Teachers in partnership with comPADRE and the NSF/NSDL.

SciTech Connect is a portal to free, publicly-available DOE-sponsored R&D results including technical reports, bibliographic citations, journal articles, conference papers, books, multimedia, software, and data information, and was developed by the U.S. Department of Energy

INSPIRE on CERNin, DESYn, Fermilabin ja SLAC:n kehittämä suurenergiafysiikan tietokanta.

American Chemical Society

An interface to a crystal structure database that includes every structure published in the American Mineralogist, The Canadian Mineralogist, European Journal of Mineralogy and Physics and Chemistry of Minerals, as well as selected datasets from other journals.

Open-access collection of crystal structures of organic, inorganic, metal-organic compounds and minerals, excluding biopolymers.