Observatories
- Arecibo Observatory (Puerto Rico)National Astronomy and Ionosphere Center, Cornell University
- Chandra X-Ray Observatory (Earth orbit)Chandra X-Ray Center, Smithsonian Astrophysical Observatory and the National Aeronautics and Space Adminstration
- FUSE: Far Ultraviolet Spectroscopic ExplorerJohns Hopkins University (and others) and the National Aeronautics and Space Adminstration. Archive is at http://archive.stsci.edu/fuse/
- GALEX (Galaxy Evolution Explorer) (Earth Orbit)California Institute of Technology and the National Aeronautics and Space Adminstration
- Greenwich (Royal Observatory) (Great Britain)National Maritime Museum
- Harvard College Observatory (Massachusetts)Harvard University
- Hubble Space Telescope (Earth orbit)Space Telescope Science Institute and the National Aeronautics and Space Adminstration
- W. M. Keck Observatory (Hawaii)California Association for Research in Astronomy
- Mount Wilson Observatory (California)Mount Wilson Institute
- National Optical Astronomy Observatory (United States)Association of Universities for Research in Astronomy and the National Science Foundation
- l'Observatoire de Paris (France)French Ministry of Higher Education and Research
- Palomar Observatory (California)California Institute of Technology
- Smithsonian Astrophysical Observatory (Massachusetts)Smithsonian Institution
- Spitzer Space Telescope (Earth orbit)Jet Propulsion Laboratory, California Institute of Technology and the National Aeronautics and Space Administration
- Yerkes Observatory (Wisconsin)Permanently Closed
