A scientist who now leads Mars exploration teams had a humble start, cleaning a space toilet at the age of 14 as part of a work experience. She went on to work on the ExoMars Rosalind Franklin rover and is currently involved with the European Space Agency, although it is unclear if she is still with the agency. The scientist's early career was marked by a rejection from NASA at the age of 14, after which she took on the work placement cleaning the space toilet.