ASTRONOMY FACES
| Adams | John Couch Adams predicted the existence of Neptune. |
| Bode | Johann Bode. Bode's law of planetary spacing. |
| Brahe | Tycho Brahe made accurate observations unaided by telescopes |
| Cassini | Giovanni Cassini first observed Saturn's moons and ring gap. |
| Copernicus | Nicolas Copernicus proposed a heliocentric solar system. |
| Eddington | Arthur Eddington: pioneer in stellar astrophysics and general relativity. |
| Encke | Johann Encke. Encke's gap in Saturn's rings. |
| Flammarion | Camille Flammarion. Double stars. |
| Flamsteed | John Flamsteed. Founded Greenwich Observatory. |
| Halley | Edmond Halley predicted the return of his famous comet. |
| C. Herschel | Caroline Herschel: perhaps the first woman astronomer. |
| J. Herschel | John Herschel, son of William. |
| W. Herschel | Sir William Herschel, brother of Caroline, discovered the planet Uranus. |
| Hevelius | Johannes Hevelius. The first lunar map. |
| Hind | John Russel Hind discovered Hind's Crimson Star also known as R Leporis. |
| Hubble | Edwin Hubble discovered the expansion of the universe. |
| Kepler | Johann Kepler discovered three laws of planetary motion. |
| Lalande | Joseph Lalande. Star catalog. |
| LeVerrier | Urbain LeVerrier predicted the existence of Neptune. |
| Newcomb | Simon Newcomb made fundamental contributions to celestial mechanics. |
| Russell | Henry Norris Russell, co-inventor of the Hertzsprung-Russell diagram. |