| Acronym | Meaning |
 | NSI | NASA Science Internet / NASA Standard Initiator / National Environmental Satellite Data And Information Service |
| HTVL | Horizontal Takeoff Vertical Landing |
| NORAD | NORth American Aerospace Defense |
| SST | Spectroscopic Survey Telescope / SuperSonic Transport |
| MACHO | MAssive Compact Halo Object |
| RHC | Rotational Hand Controller |
| SAS | Space Activity Suit / Space Adaptation Syndrome |
| GOMOS | Global Ozone Monitoring By Occultation Of Stars |
| HLV | Heavy Lift Vehicle |
| JERS | Japanese Earth Resources Satellite |
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