| Acronym | Meaning |
 | NACA | National Advisory Committee On Aeronautics |
| ATMOS | Atmospheric Trace Molecule Spectroscopy |
| INTELSAT | International Telecommunications Satellite |
| AOCS | Attitude And Orbit Control System |
| AGB | Asymptotic Giant Branch |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| MMS | Multi-mission Modular Spacecraft |
| AF | Air Force |
| ELV | Expendable Launch Vehicle |
| SPDM | Special Purpose Dextrous Manipulator |
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