| Acronym | Meaning |
 | CADH | Communications And Data Handling |
| ATM | Amateur Telescope Maker |
| ADFRF | Ames-Dryden Flight Research Facility |
| NS | Neutron Star |
| HDE | Henry Draper Extension |
| STS | Shuttle Transport System / Space Transportation System |
| HOTOL | HOrizontal TakeOff And Landing |
| IOTA | Infrared-Optical Telescope Array |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| IRAS | InfraRed Astronomical Satellite |
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