| Acronym | Meaning |
 | VICAR | Graphics Format Used By JPL |
| PMC | Permanently Manned Capability |
| IMO | International Meteor Organization |
| NPOE | NPO Energiya |
| MSOCC | Multisatellite Operations Control Center |
| DC | Delta Clipper |
| SPS | Solar Power Satellite |
| FRSI | Flexible Reusable Surface Insulation |
| MTFF | Columbus Man-Tended Free-Flyer |
| HIRDLS | High Resolution Dynamics Limb Sounder |
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