| Acronym | Meaning |
 | SDSS | Sloan Digital Sky Survey |
| PMS | Pre-Main Sequence |
| TAI | International Atomic Time |
| GIF | Graphics Interchange Format |
| LGM | Little Green Men |
| RGB | Red Giant Branch |
| SPOT | Systeme Probatoire Pour L'Observation De La Terre |
| WIMP | Weakly Interacting Massive Particle |
| ERBE | Earth Radiation Budget Experiment |
| FPD | Flight Projects Directorate |
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