| Acronym | Meaning |
 | RCS | Reaction Control System / Revision Control System |
| ALAE | Atmospheric Lyman-Alpha Emissions |
| MACHO | MAssive Compact Halo Object |
| TES | Thermal Emission Spectrometer |
| STDCE | Surface Tension Driven Convection Experment |
| PEM | Particle Environment Monitor |
| SDI | Strategic Defense Initiative |
| CMB | Cosmic Microwave Background |
| OCST | Office Of Commercial Space Transportation |
| LEM | Lunar Excursion Module |
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