| Acronym | Meaning |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment |
| AIRS | Atmospheric Infrared Sounder |
| ATLAS | Atmospheric Laboratory For Applications And Science |
| GEO | Geosynchronous Earth Orbit |
| ECS | Environmental Control System |
| FIRAS | Far InfraRed Absolute Spectrophotometer |
| ISU | International Space University |
| PLSS | Portable Life Support System |
| CM | Command Module |
| SSF | Space Station Freedom |