| Acronym | Meaning |
 | BC | Bolometric Correction |
| NASP | National AeroSpace Plane |
| CGRO | Compton Gamma Ray Observatory |
| ESO | European Southern Observatory |
| CETA | Crew And Equipment Translation Aid |
| DSCS | Defense Satellite Communications System |
| LM | Lunar Module |
| IGBP | International Geosphere/Biosphere Programme |
| PMIRR | Pressure Modulated InfraRed Radiometer |
| ARTEMIS | Advanced Relay TEchnology MISsion |
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