| Acronym | Meaning |
| OMB | Office Of Management And Budget |
| COBE | COsmic Background Explorer |
| FOLD | Federally-Owned LANDSAT Data |
| ISEP | Isolated/Stabilized Exercise Platform |
| SST | Spectroscopic Survey Telescope / SuperSonic Transport |
| HRSI | High-temperature Reusable Surface Insulation |
| LY | Light Year (usu. Ly) |
| GRS | Gamma Ray Spectrometer |
| VECO | Vernier Engine Cutoff |
| UHF | Ultra High Frequency |