engins spatiaux
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Maia (fusée) | Machine | 3 | 0.7 |
| Malligyong-1 | Concept | 9 | 0.1 |
| Mariner Mark Ii | Concept | 8 | 1.0 |
| Maxus | Machine | 6 | 0.8 |
| Mcdonnell Douglas Dc-x-200 | Machine | 3 | 0.7 |
| Mengzhou (véhicule Spatial) | Concept | 16 | 0.2 |
| Metop | Concept | 12 | 4.5 |
| Metop-sg | Concept | 6 | 2.5 |
| Mim-104 Patriot | Machine | 52 | 106.0 |
| Mirak | Machine | 5 | 0.8 |
| Mission Extension Vehicle | Concept | 4 | 1.0 |
| Miura 1 | Concept | 6 | 5.5 |
| Miura 5 | Concept | 6 | 3.1 |
| Mlv | Concept | 4 | 0.0 |
| Module Logistique Multi-usages | Concept | 26 | 1.4 |
| Module Lunaire Apollo | Concept | 45 | 82.4 |
| Module de Commande et de Service Apollo | Concept | 33 | 37.4 |
| Molniya-m | Concept | 11 | 0.0 |
| Monica | Machine | 7 | 0.1 |
| Moteur-fusée À Ergols Liquides | Machine | 31 | 38.0 |
| Myriade | Concept | 3 | 0.3 |
| Météosat Seconde Génération | Concept | 3 | 4.9 |
| N-1 | Concept | 39 | 30.7 |
| N-i | Concept | 15 | 0.3 |
| Nasir (missile) | Machine | 6 | 0.0 |
| Navette Spatiale Américaine | Concept | 103 | 214.0 |
| Neutron | Concept | 15 | 1.2 |
| New Glenn | Concept | 25 | 19.3 |
| New Shepard | Concept | 31 | 14.1 |
| Nike Tomahawk | Machine | 7 | 0.2 |
| Nova (lanceur Spatial) | Concept | 4 | 0.0 |
| Nova-c | Concept | 17 | 1.6 |
| Ob-1 | Machine | 1 | 0.3 |
| Onesat | Concept | 1 | 1.0 |
| Opportunity | Machine | 60 | 463.2 |
| Orion | Machine | 4 | 0.2 |
| Orion | Concept | 56 | 77.0 |
| P120 | Concept | 7 | 4.5 |
| P160c | Concept | 4 | 0.0 |
| P282 Smash | Machine | 3 | 0.0 |
| P80 | Concept | 7 | 0.8 |
| Peregrine (atterrisseur) | Concept | 6 | 1.4 |
| Petrel | Machine | 9 | 0.1 |
| Polikarpov Rafaelyants Pr-12 | Machine | 1 | 0.0 |
| Polyot (fusée) | Machine | 12 | 0.0 |
| Prime | Concept | 5 | 0.4 |
| Propulseur D'appoint À Poudre de la Navette Spatiale Américaine | Concept | 25 | 9.4 |
| Propulsion À Propergol Solide | Machine | 31 | 37.8 |
| Prospective Piloted Transport System | Concept | 22 | 2.5 |
| Proteus | Concept | 6 | 0.5 |