| Acronym | Meaning |
| GOMR | Global Ozone Monitoring Radiometer |
| SN | SuperNova |
| MRSR | Mars Rover And Sample Return |
| SSRV | Solar-Sail Race Vehicle |
| ALDP | Advanced Launch Development Program |
| RMS | Remote Manipulator System |
| ATM | Apollo Telescope Mount (on Skylab) |
| UV | Ultraviolet |
| EURECA | European Retrievable Carrier |
| ARC | Astrophysical Research Consortium |