• MAST - Multimission Archive at Space Telescope (NASA optical-uv archive)
• HEASARC - High Energy Astrophysics Science Archive Research Center (NASA high-energy archive)
• IRSA - InfraRed Science Archive (NASA infrared archive)
• LAMDA - Legacy Archive for Microwave Background Data Analysis (NASA CMB archive)
• ADS - NASA Astrophysics Data System
• NED - NASA Extragalactic Database

Other Data Centers

• ST-ECF - Space Telescope European Coordinating Facility (HST archive for Europe)
• CADC - Canadian Astronomical Data Center (HST archive for Canada
• NAOJ - National Astronomical Observatory of Japan (HST archive for Japan)
• LEDAS - Leicester Database and Archive Service
• NOAO - National Optical Astronomy Observatory
• CDS - Centre de Donnees astronomiques de Strasbourg