| Acronym | Meaning |
| MMT | Multiple Mirror Telescope |
| TDT | Terrestrial Dynamic Time |
| ARC | Ames Research Center (NASA) |
| EPD | Energetic Particles Detector |
| SOB | Strap-On Booster |
| PARE | Physiological And Anatomical Rodent Experiment |
| IRAF | Image Reduction And Analysis Facility |
| NTR | Nuclear Thermal Rocket(ry) |
| HRSC | High Resolution Stereo Camera |
| CREAM | Cosmic Radiation Effects And Activatiom Monitor |