| Answer | Crossword Clue |
|---|---|
| LUNA | Russian spacecraft series |
| LUNA | Russian-spacecraft series |
| LUNA | Pioneering Russian spacecraft series |
| SOYUZ | Russian spacecraft |
| SOYUZ | Russian spacecraft name |
| LUNA | Early Soviet spacecraft series |
| LUNA | '50s-'70s Soviet spacecraft series |
| LUNA | 50's-70's Soviet spacecraft series |
