| Acronym | Meaning |
 | SAS | Space Activity Suit / Space Adaptation Syndrome |
| LEO | Low Earth Orbit |
| ENAC | Energetic Neutral Atom Camera |
| ISM | InterStellar Medium |
| CMB | Cosmic Microwave Background |
| LPO | La Palma Observatory |
| UIT | Ultraviolet Imaging Telescope |
| GOX | Gaseous OXygen |
| EOS | Electrophoresis Operations In Space |
| UVS | Ultraviolet Spectrometer |
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