| Acronym | Meaning |
| ACV | At-completion Variance |
| GTS | Global Telecommunication System |
| APS | American Physical Society |
| VG | Visualization Group |
| AEP | Alkaline Earth Precipitate |
| SAS | Small Astronomy Satellite |
| UMP | Upper Mantle Project |
| AGL | Above Ground Level |
| EM | Electromagnetic Conductivity |
| AAS | American Astronomical Society |