| Answer | Crossword Clue |
|---|---|
| USA | Inits. on a rocket |
| CCCP | Inits. on a Soyuz rocket |
| RETROS | Rockets on a rocket |
| NASA | Ltrs. on a rocket |
| USA | Initials on a rocket |
| USA | Initials on a rocket, perhaps |
| CCCP | Letters on a Soyuz rocket |
| CCCP | Letters on a Soviet rocket |
| RETRO | Small rocket on a spacecraft |
| ROPE | Rocket From the Crypt "On a ..." |
| NASA | Abbr. on a U.S. rocket |
| hypergolic | (of a rocket propellant) Igniting spontaneously on mixing with another substance |
| thrusters | A small rocket engine on a spacecraft, used to make alterations in its flight path or altitude |
