| Acronym | Meaning |
| NSSDC | National Space Science Data Center |
| TSM | Tail Service Mast |
| ISO | Infrared Space Observatory |
| UV | Ultraviolet |
| MPESS | Multiple Purpose Experiment Support Structure |
| KPNO | Kitt Peak National Observatory |
| EMU | Extravehicular Mobility Unit |
| PN | Planetary Nebula |
| RASC | Royal Astronomical Society Of Canada |
| APU | Auxiliary Power Unit |