| Acronym | Meaning |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |
| WIMP | Weakly Interacting Massive Particle |
| EPD | Energetic Particles Detector |
| UT | Universal Time |
| RIACS | Research Institute For Advanced Computer Science |
| SIRTF | Space InfraRed Telescope Facility |
| BDB | Big Dumb Booster |
| APM | Attached Pressurized Module (a.k.a. Columbus) |
| HRI | High Resolution Imager |
| RG | Red Giant |