| Acronym | Meaning |
 | OAO | Orbiting Astronomical Observatory |
| FBV | Fuel Bleed Valve |
| PN | Planetary Nebula |
| IFEA | Integrated Furnace Experiment Assembly |
| ASP | Astronomical Society Of The Pacific |
| CNSR | Comet Nucleus Sample Return |
| MARS | Series Of Soviet Mars Spacecraft |
| IKI | Institut Kosmischeskikh Issledovaniya |
| RNGC | Revised New General Catalog |
| VAB | Vehicle Assembly Building |
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