satellites artificiels
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Nemesis | Objet | 2 | 0.5 |
| Neocam | Outil | 10 | 0.9 |
| Neomir | Objet | 2 | 0.0 |
| Ness | Astre | 1 | 0.9 |
| Nisar | Concept | 12 | 1.0 |
| Noor | Astre | 12 | 2.0 |
| Nozomi | Machine | 26 | 2.6 |
| Npoess | Concept | 6 | 0.9 |
| Nuclear Spectroscopic Telescope Array | Outil | 27 | 1.6 |
| Observatoire Spatial Infrarouge | Outil | 27 | 0.6 |
| Observatoire Spatial Mondial-ultraviolet | Outil | 8 | 0.5 |
| Oceansat-3 | Astre | 2 | 0.0 |
| Oceanus | Astre | 5 | 0.0 |
| Oceanus | Astre | 4 | 0.1 |
| Odin (satellite) | Outil | 15 | 1.3 |
| Ok-gli | Machine | 14 | 3.6 |
| Okean | Oeuvre | 7 | 0.7 |
| Oko | Objet | 11 | 0.8 |
| Omid | Concept | 35 | 3.1 |
| Omotenashi | Objet | 11 | 1.0 |
| Opportunity | Machine | 60 | 463.2 |
| Ops 0855 | Objet | 4 | 0.6 |
| Optos | Machine | 5 | 0.2 |
| Optsat-3000 | Astre | 4 | 0.1 |
| Oracle | Objet | 1 | 0.0 |
| Orbiting Carbon Observatory | Concept | 18 | 2.4 |
| Origins Space Telescope | Outil | 6 | 0.6 |
| Orion 1 | Astre | 4 | 0.2 |
| Ors-5 | Astre | 3 | 0.2 |
| Oso 1 | Astre | 4 | 0.0 |
| Oso 2 | Astre | 4 | 0.0 |
| Oso 3 | Astre | 5 | 0.0 |
| Oso 4 | Astre | 3 | 0.0 |
| Oso 5 | Astre | 3 | 0.0 |
| Oso 6 | Astre | 3 | 0.0 |
| Oso 7 | Astre | 5 | 0.0 |
| Oso 8 | Astre | 5 | 0.0 |
| Oufti-1 | Machine | 4 | 1.5 |
| Pageos | Objet | 9 | 0.1 |
| Palapa | Concept | 14 | 0.9 |
| Pandora (satellite) | Outil | 9 | 0.0 |
| Parker Solar Probe | Machine | 53 | 29.1 |
| Pascomsat | Astre | 5 | 0.0 |
| Pathfinder | Machine | 27 | 5.6 |
| Paz | Concept | 14 | 1.6 |
| Pegasus | Objet | 16 | 1.6 |
| Perseverance | Machine | 64 | 17.1 |
| Persona | Objet | 10 | 0.9 |
| Perusat-1 | Astre | 4 | 0.8 |
| Pharmasat | Machine | 5 | 0.3 |