| Acronym | Meaning |
 | ACRV | Astronaut Crew Rescue Vehicle |
| LRB | Liquid Rocket Booster |
| MS | Main Sequence |
| UPPP | Union Pour La Promotion De La Propulsion Photonique |
| IPS | Inertial Pointing System |
| CETA | Crew And Equipment Translation Aid |
| TDRS | Tracking And Data Relay Satellite |
| UIT | Ultraviolet Imaging Telescope |
| UARS | Upper Atmosphere Research Satellite |
| HRSI | High-temperature Reusable Surface Insulation |
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