| Answer | Crossword Clue |
|---|---|
| ENOS | Project Mercury primate |
| RHESUS | Primate used in early Project Mercury missions |
| ENOS | Project Mercury chimp |
| ASTRONAUT | Project Mercury man. |
| GUS | Project Mercury nickname |
| GLENN | Mercury project hero |
| ENOS | Project Mercury simian |
| NASA | Project Mercury org. |
| AOK | Project Mercury affirmative |
| NASA | Project Mercury agency. |
| ATLAS | Project Mercury launcher |
| ATLASES | Project Mercury launchers |
| NASA | Project Mercury gr. |
| ASTRONAUT | Project Mercury member. |
| ENOS | 1961 Project Mercury chimp |
| NASA | Group back of Project Mercury. |
| GUS | Fellow astronaut of Deke in Project Mercury |
