| Acronym | Meaning |
| TOS | Transfer Orbit Stage |
| OCTS | Ocean Color And Temperature Scanner |
| ALDP | Advanced Launch Development Program |
| IGM | InterGalactic Medium |
| NSF | National Science Foundation |
| SPH | Smoothed-Particle Hydrodynamics |
| OTFE | Oscillatory Thermocapillary Flow Experiment |
| UGC | Uppsala General Catalog |
| MLI | Multi-Layer Insulation |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |