| 1. | "LIGO: The Laser Interferometer Gravitational-Wave Observatory". Article détaillé : Laser Interferometer Gravitational-Wave Observatory. |
| 2. | First superintendent of the U.S. Navy Observatory. Premier surintendant de l'U.S. Navy Observatory. |
| 3. | Publications of the Dominion Astrophysical Observatory. Frank trouva un poste au Dominion Astrophysical Observatory. |
| 4. | IRIS Legal Observations of the European Audiovisual Observatory. Les données ci-dessous proviennent de l'European Audiovisual Observatory. |
| 5. | Hong Kong: Hong Kong Observatory. Source : Hong Kong Observatory. |
| 6. | At this time the site was known as Catalina Observatory. A cette époque, le site était appelé Catalina Observatory. |
| 7. | While she studied there, she worked at the Sproul Observatory. Durant ses études, elle travaille au Sproul Observatory (en). |
| 8. | Cerro Tololo Inter-American Observatory. El Cerro Tololo, qui abrite l'observatoire astronomique Cerro Tololo Interamerican Observatory. |
| 9. | IPAC is also a participating organization in the Virtual Astronomical Observatory (VAO). Il participe également au Virtual Astronomical Observatory (en) (VAO). |
| 10. | The Australian Institute of International Affairs is an Australian private research institute. Le Corporate Europe Observatory est un centre de recherche altermondialiste. |