| Acronym | Meaning |
| TDRS | Tracking And Data Relay Satellite |
| GIF | Graphics Interchange Format |
| JILA | Joint Institute For Laboratory Astrophysics |
| STSDAS | Space Telescope Science Data Analysis System |
| IML | International Microgravity Lab |
| OCST | Office Of Commercial Space Transportation |
| SLAR | Side-Looking Airborne Radar |
| GMC | Giant Molecular Cloud |
| PPF | Columbus Polar Platform |
| VLBA | Very Long Baseline Array |