Astronaut Alexander Gerst works on the Microgravity Investigation of Cement Solidification
| Uploaded by | NASA Johnson |
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| License | CC BY-NC-ND 2.0 |
| Comments | 0 |
| Favorites | 6 |
| Views | 8,428 |
| Date taken | 2018-07-02 15:00:43 |
| Date uploaded | 2018-07-09 |
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| Visibility | public |