| Acronym | Meaning |
 | HUT | Hopkins Ultraviolet Telescope |
| SOFI | Spray-on Foam Insulation |
| APM | Attached Pressurized Module (a.k.a. Columbus) |
| RAS | Royal Astronomical Society |
| EMU | Extravehicular Mobility Unit |
| CDDT | Countdown Demonstration Test |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
| ERS | Environmental Research Satellite |
| TPS | Thermal Protection System |
| SOB | Strap-On Booster |
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