| Acronym | Meaning |
 | IDA | International Dark-sky Association |
| PHA | Physics And Astronomy |
| DM | Dark Matter |
| GHRS | Goddard High Resolution Spectrograph |
| EJASA | Electronic Journal Of The Astronomical Society Of The Atlantic |
| TSTO | Two Stage To Orbit |
| CFA | Harvard-Smithsonian Center For Astrophysics |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection |
| UFO | Unidentified Flying Object |
| ACRV | Assured Crew Return Vehicle |
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