| Acronym | Meaning |
| FRC | Flight Research Center |
| FRR | Flight-Readiness Review |
| DM | Dark Matter |
| HTVL | Horizontal Takeoff Vertical Landing |
| COMSAT | Communications Satellite (Corporation) |
| TES | Thermal Emission Spectrometer |
| ATM | Apollo Telescope Mount (on Skylab) |
| CETA | Crew And Equipment Translation Aid |
| ALEXIS | Array Of Low Energy X-ray Imaging Sensors |
| MSOCC | Multisatellite Operations Control Center |