| Acronym | Meaning |
 | MMT | Multiple Mirror Telescope |
| LY | Light Year (usu. Ly) |
| HRSR | High-Resolution Scanning Radiometer |
| LARC | Langley Research Center |
| AOCS | Attitude And Orbit Control System |
| FTS | Flight Telerobotic Servicer |
| OSCAR | Orbiting Satellite Carrying Amateur Radio |
| IRFNA | Inhibited Red Fuming Nitric Acid |
| AF | Air Force |
| GBT | Green Bank Telescope |
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