Scientists who performed research in Oxford include chemist Dorothy Hodgkin who received her Nobel Prize for "determinations by X-ray techniques of the structures of important biochemical substances", Howard Florey who shared the 1945 Nobel prize "for the discovery of penicillin and its curative effect in various infectious diseases", and John B. Goodenough, who shared the Nobel Prize in Chemistry in 2019 "for the development of lithium-ion batteries". Both Richard Dawkins and Frederick Soddy studied at the university and returned for research purposes. Robert Hooke, Edwin Hubble, and Stephen Hawking all studied in Oxford.