The Astrophysical Data System (ADS) is a Digital Library covering Astronomy and Physics. It contains over 11 million publications in Astronomy, Physics, and Astrophysics. The ADS is managed by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant.
No-contact Paged Pickup scheduling begins June 15. Outdoor book drops are open. Buildings remain closed. We are still, and always, here to help: current library services.