| Acronym | Meaning |
 | IUE | International Ultraviolet Explorer |
| ENACEOS | ENAC For EOS |
| RAS | Royal Astronomical Society |
| WMO | World Meterological Organisation |
| IDA | International Dark-sky Association |
| CMBR | Cosmic Microwave Background Radiation |
| HDM | Hot Dark Matter |
| LRSI | Low-temperature Reusable Surface Insulation |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| IFEA | Integrated Furnace Experiment Assembly |
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