Institutes
| Augustana College | |
| Carleton College | |
| Columbia University Astronomy and Astrophysics | |
| Dickinson College - Physics and Astronomy | |
| European Southern Observatory | |
| Georgia State University Astronomy | |
| Indiana University Astronomy | |
| Instituto de Astrofisica de Canarias (Canary Island, Spain) | |
| Iowa State University | |
| Max-Planck-Institut für Astronomie | |
| Netherlands Foundation for Research in Astronomy | |
| Nicolaus Copernicus Astronomical Centre | |
| Niels Bohr Institute | |
| Observatorio Astronomico Nacional, UNAM | |
| Ohio University - Physics and Astronomy | |
| Partical Physics and Astronomy Research Council (UK) | |
| SFSU Physics & Astronomy | |
| San Diego State University | |
| Seoul National University - Astronomy | |
| UCSD Institute of Geophysics and Planetary Physics | |
| USC - Dept. of Physics and Astronomy | |
| UT - Austin Astronomy | |
| Universitat de Valencia - Grupo de Astronomía y Ciencias del Espacio | |
| University Complutense of Madrid - Departamento de Astrofisica | |
| University of Amsterdam - Astronomical Institute | |
| University of Canterbury, Christchurch - Physics & Astronomy Department | |
| University of Chicago - Astronomy and Astrophysics | |
| University of Delaware - Dept. of Physics and Astronomy | |
| University of Denver | |
| University of Edinburgh - Physics and Astronomy | |
| University of Georgia - Department of Astronomy and Physics | |
| University of Glasgow - Astronomy & Astrophysics Group | |
| University of Hawaii - Department of Physics and Astronomy | |
| University of Jena - Astronomy and Astrophysics | |
| University of Kentucky | |
| University of Maryland at College Park | |
| University of Michigan | |
| University of New South Wales - Astrophysics and Optics | |
| University of North Carolina | |
| University of Oklahoma - Physics and Astronomy | |
| University of Rochester - Physics and Astronomy | |
| University of Southampton | |
| University of Toledo Department - Physics and Astronomy | |
| University of Wales, Cardiff - Physics and Astronomy | |
| University of Wisconsin-Madison Space Astronomy Lab | |
| Wayne State University Physics & Astronomy | |
| Yale University - Astronomy | |
| Hubble Space Telescope News | |
| Los Angeles Astronomical Society | |
| National Academy of Sciences Board on Physics and Astronomy | |
| Oil Region Astronomical Society | |
| ISO Science Results | |
| Space Image Library [okstate.edu] | |
| Armagh Planetarium (United Kingdom) | |
| Kountze Planetarium - University of Nebraska at Omaha | |
| Minolta Planetarium - De Anza College | |
| Mueller Planetarium - University of Nebraska State Museum | |
| Planetarium de Saint-Etienne (France) | |
| Caltech Computational Astronomy | |
| Society of Amateur Radio Astronomers | |
| University of Calgary (Canada) - Radio Astronomy Laboratory | |