| Acronym | Meaning |
 | LDEF | Long Duration Exposure Facility |
| MEV | Mars Excursion Vehicle |
| ASI | Agenzia Spaziale Italiano |
| NRL | Naval Research Laboratory |
| S | Spiral (for Galaxies) |
| HRPT | High Resolution Picture Transmission |
| MNRAS | Monthly Notices Of The Royal Astronomical Society |
| ISAMS | Improved Stratospheric And Mesospheric Sounder |
| NRSC | National Remote Sensing Centre |
| ESPC | European Space Power Conference |
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