| Pisa genius |
| Famous Pisan |
| Gravity studier |
| 1600's stargazer |
| Telescope pioneer |
| Italian astronomer |
| Brahe contemporary |
| Kepler contemporary |
| Copernican theorist |
| Copernicus successor |
| Copernicus supporter |
| Pisa-born astronomer |
| Storied ball dropper |
| Early sunspot studier |
| Spacecraft to Jupiter |
| Sidereus Nuncius" author |
| Two New Sciences" author |
| Noted Italian astronomer |
| Tycho Brahe contemporary |
| Father of Modern Science |
| Famous Italian astronomer |
| Classic Italian astronomer |
| Italian astronomer, d. 1642 |
| NASA probe launched in 1989 |
| NASA Jupiter orbiter of 1995 |
| Astronomer — ogle Ali (anag) |
| Famed advocate of Copernicanism |
| Italian astronomer born in Pisa |
| First spacecraft to orbit Jupiter |
| Discoverer of Jupiter's four largest moons |
| Astronomer exonerated by the Vatican in 1992 |
| Italian astronomer and mathematician, d. 1642 |
| 1989 NASA probe named for an Italian astronomer |
| Astronomer who discovered the main moons of Jupiter |
| US unmanned space-craft launched in 1989 to investigate Jupiter |
| Renaissance immortal known as the "Father of the Scientific Method |
| He was branded a heretic for writing the "Dialogue Concerning the Two Chief World Systems |