| HYPATIA | Greek philosopher c370-c415AD, first notable female astronomer and mathematician (7) |
| XENOPHON | Greek philosopher and military leader who wrote Anabasis in c370 BC (8) |
| EMINENT | Notable female artist with English conservationists (7) |
| XYLOPHONE | Its first notable orchestral use was in Saint-Saens' "Danse Macabre" |
| NOAH | First notable old ark handler (4) |
| FAMOUS | Notable female, a computer operator mostly (6) |
| GALILEI | The surname of the Italian natural philosopher, astronomer, and mathematician who discovered the moons Io, Europa, Ganymede, and Callisto (7) |
| GALILEO | Italian astronomer and mathematician, d. 1642 (7) |
| PTOLEMY | Second-century astronomer and mathematician |
| LAPLACE | French astronomer and mathematician |
| LEIBNIZ | Gottfried Wilhelm von ..., German philosopher and mathematician who was a contemporary of Isaac Newton (7) |
| RUSSELL | Bertrand ___ , philosopher and mathematician, d. 1970 (7) |
| VERMEER | Artist who painted The Milkmaid, The Astronomer and The Geographer (7) |
| ADAMS | Astronomer and mathematician who co-discovered Neptune; or, the athlete, who in 2012, became the first woman to win an Olympic boxing title (5) |
| EULER | Tips on where you will see astronomer and mathematician |
| HALLEY | Edmond --, 1656-1742, English astronomer and mathematician (6) |
| HOYLE | Sir Fred ___, 1915-2001, astronomer and mathematician (5) |
| HUYGENS | Dutch mathematician, astronomer, and physicist, who founded the wave theory of light, discovered the true shape of the rings of Saturn. He discovered Saturn's moon Titan with a telescope in 1655. |
| NEWCOMB | Astronomer and professor of mathematics in the United States Navy who died in 1909 (5,7) |
| GAUSS | German astronomer and mathematician Carl Friedrich |
