The main story on Newsround tonight was about innocent children who've got their DNA on police file, and want the information deleted.

Who discovered the structure of DNA? Most people say Crick and Watson who were awarded the Nobel Prize in 1961. But their work would not have been possible without research by the Crystallographer Rosalind Franklin, a woman working in science in the 1950s when women were still treated as second class people.



There were separate common rooms and dining rooms for men and women at the college where she worked. Her painstaking work using X-rays together with thousands of calculations was crucial, and it's likely that exposure to radiation cost her life from cancer at the age of 37