| Acronym | Meaning |
 | SMS | Shuttle Mission Simulator |
| SSRV | Solar-Sail Race Vehicle |
| FITS | Flexible Image Transport System |
| LST | Local Sidereal Time |
| ACRV | Astronaut Crew Rescue Vehicle |
| SST | Spectroscopic Survey Telescope / SuperSonic Transport |
| USN | United States Navy |
| IUE | International Ultraviolet Explorer |
| ESO | European Southern Observatory |
| XUV | Extreme Ultraviolet |
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