Topic
| Code | 20000739 |
|---|---|
| Name | space exploration |
| Description | The scientific exploration of outer space through manned and unmanned missions |
| Lft | 76 |
| Lvl | 3 |
| Rgt | 77 |
| Code | 20000739 |
|---|---|
| Name | space exploration |
| Description | The scientific exploration of outer space through manned and unmanned missions |
| Lft | 76 |
| Lvl | 3 |
| Rgt | 77 |