| Answer | Crossword Clue |
|---|---|
| ATLAS | NASA booster rocket |
| AGENA | NASA booster |
| AGENA | Onetime NASA booster |
| AGENA | Rocket booster |
| AGENA | Booster rocket |
| ATLAS | Booster rocket |
| AGENA | Atlas-..., booster rocket. |
| ATLAS | Early booster rocket |
| THOR | ...-Agena booster rocket. |
| AGENA | Rocket-booster stage |
| TITAN | Huge booster rocket |
| ATLAS | U.S. booster rocket |
| STAGE | Booster, to a rocket |
