| Acronym | Meaning |
 | GEO | Geosynchronous Earth Orbit |
| INTELSAT | International Telecommunications Satellite |
| NASM | National Air And Space Museum |
| SLAR | Side-Looking Airborne Radar |
| ASCO | Arab Satellite Communications Organization |
| FRED | Space Station Freedom |
| HUT | Hopkins Ultraviolet Telescope |
| S | Spiral (for Galaxies) |
| MISR | Multiangle Imaging Spectro-Radiometer |
| CSM | Command And Service Module |
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