| Answer | Crossword Clue |
|---|---|
| GLENN | Oldest man in space |
| GLENN | He became the oldest man in space |
| ASTRONAUT | Man in space |
| PROJECTMERCURY | Man-in-space undertaking |
| YURIGAGARIN | First man in space |
| YURIGAGARIN | The first man in space |
| WEIGHTLESS | Describing man in outer space. |
| LEONOV | First man to walk in space |
| GRISSOM | First man to fly in space twice |
| VOYAGER | Most distant man-made object in space |
| GUSGRISSOM | The first man to fly in space twice |
| YURI | First name of the first man in space |
| ALEKSEI | Leonov who was the first man to walk in space |
