| Acronym | Meaning |
 | ACTS | Advanced Communications Technology Satellite |
| HTHL | Horizontal Takeoff Horizontal Landing |
| GPS | Global Positioning System |
| CDM | Cold Dark Matter |
| IML | International Microgravity Lab |
| SSBUV | Shuttle Solar Backscatter Ultraviolet Experiment |
| UKST | United Kingdom Schmidt Telescope |
| VICAR | Graphics Format Used By JPL |
| TCM | Trajectory Control Maneuver |
| SPH | Smoothed-Particle Hydrodynamics |
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