| Clue | Source | Date |
|---|---|---|
| Big name in early astronomy | ||
| Name on Pisa's airport | The Washington Post | 02 Sep 2018 |
| Name on Pisa's airport | LA Times Daily | 02 Sep 2018 |
| Name on Pisa's airport | ||
| Last name in astronomy | New York Times | 21 Dec 2017 |
| Last name in astronomy | ||
| Name on Pisa's airport | ||
| Pisa airport name | ||
| Pisa airport name | ||
| Telescope pioneer's last name | ||
| Telescope inventor's last name | ||
| Galileo ___ | ||
| A last name in astronomy | ||
| Great name in astronomy. | ||
| Family name of great physicist. | ||
| Family name of famous astronomer. | ||
| Astronomer's family name. | ||
| Galileo ___ | ||
| Family name of great scientist. |