| Acronym | Meaning |
 | DACS | DATA Acquisition And Control Subsystem |
| HERA | Hermes Robotic Arm |
| SAA | South Atlantic Anomaly / Single Access Antenna |
| ATLAS | Atmospheric Laboratory For Applications And Science |
| MOLA | Mars Observer Laser Altimeter |
| SID | Sudden Ionospheric Disturbance |
| GDS | Great Dark Spot |
| SAS | Space Activity Suit / Space Adaptation Syndrome |
| CHARA | Center For High Angular Resolution Astronomy |
| CDM | Cold Dark Matter |
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