| Acronym | Meaning |
 | ET | External Tank |
| MRIR | Medium Resolution Infrared Radiometer |
| IPMP | Investigations Into Polymer Membrane Processing |
| ASI | Agenzia Spaziale Italiano |
| VISSR | Visible/Infrared Spin-Scan Radiometer |
| OV | Orbital Vehicle |
| JPL | Jet Propulsion Laboratory |
| SETI | Search For ExtraTerrestrial Intelligence |
| AAS | American Astronomical Society |
| PPF | Columbus Polar Platform |
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