| Acronym | Meaning |
| USA/RC | Universities Space Automation/Robotics Consortium |
| GPPF | Gravitational Plant Physiology Facility |
| GRU | Glavnoye Razvedivatel'noye Upravileniye |
| HLC | Heavy Lift Capability |
| ISY | International Space Year |
| WTR | Western Test Range |
| SRB | Solid Rocket Booster |
| OARE | Orbital Acceleration Research Experiment |
| MTFF | Columbus Man-Tended Free-Flyer |
| GSO | GeoSynchronous Earth Orbit |