| Acronym | Meaning |
 | IGBP | International Geosphere/Biosphere Programme |
| DSS | Deep Space Station |
| CNSR | Comet Nucleus Sample Return |
| PLSS | Portable Life Support System |
| SPAN | Space Physics And Analysis Network |
| RHC | Rotational Hand Controller |
| ALS | Advanced Launch System |
| GDCLS | General Dynamics Commercial Launch Services |
| LM | Lunar Module |
| GC | Galactic Center |
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