| Acronym | Meaning |
 | HERA | Hermes Robotic Arm |
| AMSR | Advanced Microwave Sounding Radiometer |
| CBR | Cosmic Background Radiation |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| SSI | Solid-State Imager / Space Studies Institut |
| SSRMS | Space Station Remote Manipulator System |
| VVS | Voenno-Vosdushniye Sili |
| CRAF | Comet Rendezvous/Asteroid Flyby |
| VFT | Visual Function Tester |
| LY | Light Year (usu. Ly) |
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