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ADS - NASA Astrophysics Data System
Advanced Technologies and Aerospace Collection (ProQuest)
AMS MathSciNet Mathematical Reviews
Annual Reports of Observatories
ARIBIB - ARI Bibliographic Data Base for Astronomical References
NASA Astrophysics Data Centers
Astronomy Image Explorer (AAS)
Astrophysics Source Code Library (ASCL)
Astronomy Picture of the Day (APOD)
Astrostatistics and Astroinformatics Portal (ASAIP)
Atomic and Molecular Physics (AMP) Tools: Databases
CDS - Centre de Données astronomiques de Strasbourg
CEPS - Center for Earth and Planetary Studies
Chemical Abstracts / SciFinder Scholar
Contact the Chemistry Library for username/password
Directory of Astronomy Librarians and Libraries
Dissertations and Theses Full Text (ProQuest)
Encyclopedia of Astronomy and Astrophysics
Etymological Dictionary of Astronomy and Astrophysics
European Space Astronomy Centre (ESAC) Science Archives
Harvard College Observatory Photographic Plates Collection
Harvard University Department of Astronomy
High Energy Astrophysics Science Archive Research Center (HEASARC)
Hipparcos Space Astrometry Mission
IAU: Central Bureau for Astronomical Telegrams (CBAT)
INSPEC Institution of Engineering and Technology (IET)
inSPIRES High-Energy Physics (HEP) Literature Database
International Astronomy Meetings (Liz Bryson/CADC)
IRSA - NASA/IPAC Infrared Science Archive
Meteorological and Geophysical Abstracts (ProQuest)
Mikulski Archive for Space Telescopes (MAST)
NACA-National Advisory Committee for Aeronautics
NASA/IPAC Extragalactic Database (NED)
NASA Jet Propulsion Laboratory (JPL)
NASA National Space Science Data Center
NASA Scientific and Technical Information Program
NASA Tech Briefs: Engineering Solutions for Design & Manufacturing
NOAA Space Weather Prediction Center
NTIS - National Technical Information Service
NTRS - NASA Technical Reports Server
Notable Astronomers at Mount Auburn Cemetery
Physics & Astronomy Classification Scheme (PACS)
Physical Review Focus (APS)
Sky & Telescope Astronomy Online Resources
Space Weather Prediction Center (NOAA)