| Acronym | Meaning |
 | ELV | Expendable Launch Vehicle |
| ERBE | Earth Radiation Budget Experiment |
| ISM | InterStellar Medium |
| LGM | Little Green Men |
| DARPA | Defense Advanced Research Projects Agency |
| NIST | National Institute For Standards And Technology |
| SSPO | Space Shuttle Program Office |
| IRAF | Image Reduction And Analysis Facility |
| UARS | Upper Atmosphere Research Satellite |
| CCRS | Canada Centre For Remote Sensing |
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