| Pacific Ocean discoverer |
| Italian discoverer of six comets |
| Comet co-discoverer who shares his name with a father-and-son acting pair |
| Banned pesticide whose discoverer won a Nobel Prize |
| Radium co-discoverer |
| Comet co-discoverer Hale |
| Discoverer of the Marianas: 1521 |
| Mississippi discoverer |
| Nuclear fission co-discoverer Otto |
| Radium discoverer |
| Radium finder? |
| Sandwich Islands discoverer |
| TNT discoverer, tocohorts |
| Banting and ____(Insulindiscoverers ) |
| Radium discoverers |
| Quasar co-discoverer Sandage |
| Discoverer of Jupiter's four largest moons |
| Discoverer of Greenland. |
| Radium pioneer |
| Electromagnetic induction discoverer |
| Radium discoverer Marie |
| Insulin discoverer |
| Radium isotope: Abbr. |
| Discoverer of Nova Scotia |
| Radium co-discoverer Marie |
| Radium co-discoverer Marie or Pierre |
| Co-discoverer of cosmic rays Victor |
| Discoverer of Cape of Good Hope. |
| Either co-discoverer of radium |
| Insulin co-discoverer |