| Acronym | Meaning |
 | PLB | Payload Bay |
| MPESS | Multiple Purpose Experiment Support Structure |
| CGF | Crystal Growth Furnace |
| AAS | American Astronautical Society |
| VTHL | Vertical Takeoff Horizontal Landing |
| MOTV | Manned Orbital Transfer Vehicle |
| HLC | Heavy Lift Capability |
| LST | Local Sidereal Time |
| TAI | International Atomic Time |
| ADS | Astrophysical Data System (at Havard-Smithsonian CfA) |
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