| Acronym | Meaning |
| LEM | Lunar Excursion Module |
| PMT | PhotoMultiplier Tube |
| AF | Air Force |
| DOT | Department Of Transportation |
| SAS | Space Activity Suit / Space Adaptation Syndrome |
| LASCO | Large Angle Spectrometric Coronograph |
| AOCS | Attitude And Orbit Control System |
| PLSS | Portable Life Support System |
| ALEXIS | Array Of Low Energy X-ray Imaging Sensors |
| SLAP | Space Link Access Protocol |