| svenska | swe-000 |
| Gravity Probe B | |
| Deutsch | deu-000 | Gravity Probe |
| eesti | ekk-000 | Gravity Probe B |
| English | eng-000 | Gravity Probe B |
| suomi | fin-000 | Gravity Probe B |
| français | fra-000 | Gravity Probe B |
| bokmål | nob-000 | Gravity Probe B |
| polski | pol-000 | Gravity Probe B |
| русский | rus-000 | Gravity Probe B |
| davvisámegiella | sme-000 | Gravity Probe B |