| MCBRIDE | Doctor who discovered the effects of thalidomide, William ... (7) |
| DAVY | English chemist who discovered the effects of laughing gas (4) |
| DOPPLER | Christian, 19th-century mathematician who discovered the effect which concerns the frequency of light and sound waves (7) |
| HAROLDEVANS | Crusading journalist who died on September 23, and in the 1970s, exposed the thalidomide scandal |
| EMMENTHAL | Jerusalem men, thalidomide victims, wanted a bit of cheese (9) |
| BRADLEY | Edmond Halley's successor as Astronomer Royal who discovered the aberration of starlight and the nutation of the Earth's axis (7) |
| GALILEI | The surname of the Italian natural philosopher, astronomer, and mathematician who discovered the moons Io, Europa, Ganymede, and Callisto (7) |
| ALVAREZ | Physicist who discovered the iridium layer and proposed that the mass extinction of dinosaurs was caused by an asteroid impact (7) |
| PASTEUR | French chemist who discovered the principle of microbial fermentation (7) |
| OERSTED | Danish physicist who discovered the magnetic effect of an electric current (7) |
| CROOKES | William ___, English chemist and physicist who discovered the element thallium in 1861 (7) |
| GALILEO | Italian astronomer who discovered the first four of Jupiter's moons (7) |
| BINGHAM | Hiram ___, historian and later US Senator who discovered the Inca ruins of Machu Picchu (7) |
| CARTIER | Jacques ___, French explorer who discovered the St Lawrence River, Canada (7) |
| BLONDEL | Fair student who discovered the Lionheart (7) |
| CASSINI | Giovanni Domenico -; astronomer who discovered the gaps between Saturn's rings (7) |
| THOMSON | Nobel Prize-winning physicist who discovered the electron in 1897 (7) |
| EPSTEIN | Brian -, music entrepreneur who discovered the Beatles (7) |
| BALLARD | The oceanographer who discovered the Titanic's wreck |
| ALIBABA | Poor woodcutter who discovered the magic words 'Open Sesame' (3,4) |
