satellites artificiels
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Lisa Pathfinder | Concept | 25 | 5.8 |
| Litebird | Outil | 6 | 0.4 |
| Lk-1 | Objet | 3 | 0.2 |
| Low-density Supersonic Decelerator | Objet | 10 | 2.2 |
| Low-earth Orbit Flight Test Of An Inflatable Decelerator | Objet | 4 | 0.6 |
| Lstm | Concept | 1 | 0.7 |
| Luna 1 | Machine | 62 | 8.1 |
| Luna 10 | Machine | 41 | 1.0 |
| Luna 13 | Astre | 32 | 1.1 |
| Luna 16 | Machine | 39 | 7.4 |
| Luna 20 | Machine | 35 | 1.3 |
| Luna 21 | Machine | 36 | 1.0 |
| Luna 24 | Astre | 38 | 4.2 |
| Luna 6 | Machine | 29 | 0.2 |
| Lunar Cruiser | Machine | 6 | 0.0 |
| Lunar Flashlight | Machine | 12 | 1.3 |
| Lunar Gateway | Lieu | 36 | 18.3 |
| Lunar Icecube | Astre | 8 | 0.9 |
| Lunar Infrared Imaging | Machine | 10 | 0.0 |
| Lunar Pathfinder | Objet | 3 | 1.0 |
| Lunar Polar Hydrogen Mapper | Astre | 9 | 0.1 |
| Lunar Prospector | Machine | 30 | 2.8 |
| Lunokhod 1 | Machine | 33 | 26.2 |
| Lunokhod 2 | Machine | 26 | 9.0 |
| M-matisse | Objet | 1 | 0.0 |
| Magellan | Astre | 45 | 6.7 |
| Magic | Objet | 1 | 0.2 |
| Mangalyaan | Astre | 57 | 5.9 |
| Mangalyaan 2 | Astre | 14 | 1.1 |
| Manned Orbital Laboratory | Astre | 23 | 1.6 |
| Marine Observation Satellite 1 | Astre | 5 | 0.3 |
| Mariner 10 | Machine | 61 | 12.9 |
| Mariner 2 | Astre | 49 | 5.2 |
| Mariner 3 | Machine | 41 | 1.8 |
| Mariner 4 | Astre | 53 | 8.7 |
| Mariner 5 | Astre | 39 | 5.5 |
| Mariner 6 | Machine | 19 | 1.5 |
| Mariner 7 | Machine | 21 | 1.7 |
| Mariner 9 | Machine | 55 | 6.3 |
| Mars 1 | Astre | 35 | 3.0 |
| Mars 1969a | Objet | 16 | 0.9 |
| Mars 2 | Machine | 39 | 5.1 |
| Mars 2022 Orbiter | Concept | 8 | 1.7 |
| Mars 3 | Machine | 44 | 10.7 |
| Mars 4 | Machine | 29 | 1.4 |
| Mars 5 | Machine | 28 | 1.9 |
| Mars Climate Orbiter | Machine | 37 | 17.3 |
| Mars Express | Astre | 53 | 14.2 |
| Mars Global Surveyor | Astre | 45 | 12.1 |
| Mars Life Explorer | Objet | 1 | 0.0 |