| Acronym | Meaning |
| EOS | Electrophoresis Operations In Space |
| POEM | Polar Orbiting Earth Mission |
| UGC | Uppsala General Catalog |
| MLS | Microwave Limb Sounder |
| PDE | Particle Dispersion Experiment |
| HTHL | Horizontal Takeoff Horizontal Landing |
| ALDP | Advanced Launch Development Program |
| SAGA | Solar Array Gain Augmentation |
| CCD | Charge-Coupled Device |
| SOB | Strap-On Booster |