| Acronym | Meaning |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| FPM | Fiber Pulling In Microgravity |
| NACA | National Advisory Committee On Aeronautics |
| PEM | Particle Environment Monitor |
| DAO | Dominion Astrophysical Observatory |
| ASTRO | Space Astrophysics Laboratory |
| AIPS | Astronomical Image Processing System |
| HLV | Heavy Lift Vehicle |
| SWLC | Salt Water Leak Check |
| REM | Rat Enclosure Module |