| Acronym | Meaning |
| MVI | Microgravity Vestibular Investigation |
| SMEX | Small EXplorers |
| ISAMS | Improved Stratospheric And Mesospheric Sounder |
| HTVL | Horizontal Takeoff Vertical Landing |
| MACS | Modular Attitude Control System |
| ISO | Imaging Spectrometic Observatory |
| BAE | British Aerospace |
| GOMR | Global Ozone Monitoring Radiometer |
| WMO | World Meterological Organisation |
| BATSE | Burst And Transient Source Experiment |