| Acronym | Meaning |
| SL | (Comet) Shoemaker-Levy / SpaceLab |
| AAS | American Astronautical Society |
| APU | Auxiliary Power Unit |
| M | Messier |
| SR | Special Relativity |
| ALAE | Atmospheric Lyman-Alpha Emissions |
| AURA | Association Of Universities For Research In Astronomy |
| ML | Mobile Launcher |
| GC | Galactic Center |
| GPPF | Gravitational Plant Physiology Facility |