| Acronym | Meaning |
 | SSRMS | Space Station Remote Manipulator System |
| IDA | International Dark-sky Association |
| XMM | X-ray Multi Mirror |
| ATM | Amateur Telescope Maker |
| MARS | Series Of Soviet Mars Spacecraft |
| AFP | Air Force Program |
| ESO | European Southern Observatory |
| UVS | Ultraviolet Spectrometer |
| GMRT | Giant Meter-wave Radio Telescope |
| OSTP | Office Of Science And Technology Policy |
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