We, the Weizmann Institute of Science community, deeply mourn the passing of Prof. Ada Yonath of the Institute’s Chemical and Structural Biology Department. Prof. Yonath pioneered the study of the ribosome, the cell’s protein factory, and was awarded the 2009 Nobel Prize in Chemistry for her research in this field. Her decades-long scientific journey led to an understanding of how various antibiotics work, helping pave the way for the development of new antibiotics and the fight against antibiotic-resistant bacteria. Yonath, the first Israeli woman scientist to win a Nobel Prize, also received dozens of other awards and honors, including the Israel Prize in Chemistry and the Wolf Prize in Chemistry. Prof. Yonath exemplified how scientific vision, the courage to choose a major scientific question and unwavering dedication to its pursuit can lead to extraordinary achievements and expand the boundaries of knowledge for the future of humanity. May her memory be a blessing. bit.ly/ada-yonath-eng