| Acronym | Meaning |
| MOL | Manned Orbital Laboratory |
| NOC | Network Operations Center |
| PFA | Primary Flux Array |
| MD | Modernization Division |
| DNS | Direct Numerical Simulation |
| CBO | Congressional Budget Office |
| MPI | Max Planck Institute |
| NCDC | National Climatic Data Center |
| BOF | Birds Of A Feather |
| IRIS | Italian Research Interim Stage |