Astrophysics Data System

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article's tone or style may not reflect the encyclopedic tone used on Wikipedia. See Wikipedia's guide to writing better articles for suggestions. (March 2023) (Learn how and when to remove this message) This article needs to be updated. The reason given is: most content is from 2005, ignoring the updates and improvements since then. Please help update this article to reflect recent events or newly available information. (May 2023) (Learn how and when to remove this message)

SAO/NASA Astrophysics Data System

Producer	Smithsonian Astrophysical Observatory for the National Aeronautics and Space Administration (United States)
History	1992 to present
Access
Cost	Free
Coverage
Disciplines	Astronomy and physics
Record depth	Index & abstract & full-text
Geospatial coverage	Worldwide
Links
Website	ui.adsabs.harvard.edu

The SAO/NASA Astrophysics Data System (ADS) is a digital library portal for researchers on astronomy and physics, operated for NASA by the Smithsonian Astrophysical Observatory. ADS maintains three bibliographic collections containing over 15 million records, including all arXiv e-prints.^[1] Abstracts and full-text of major astronomy and physics publications are indexed and searchable through the portal.