| Acronym | Meaning |
 | RTLS | Return To Launch Site |
| NSO | National Solar Observatory |
| TOPS | Toward Other Planetary Systems |
| STIS | Space Telescope Imaging Spectrometer |
| NDV | NASP Derived Vehicle |
| GBT | Green Bank Telescope |
| CRIM | Commercial Refrigerator Incubator Module |
| MTFF | Columbus Man-Tended Free-Flyer |
| DCX | Delta Clipper EXperimental |
| CFA | Harvard-Smithsonian Center For Astrophysics |
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