Recording of the virtual gala for the 2020 Gairdner Awards. Among the award winners was MPI-IE Emeritus Director Rolf Kemler. Together with Masatoshi Takeichi from the Riken Center in Japan, he received the Canada Gairdner International Award 2020. The two biologists are honored for their research on cell adhesion mechanisms. Their contributions were central to the understanding of cell-cell adhesion as well as cell communication. The molecules and mechanisms discovered also play an important role in cancer research since misregulation is involved in the development of different forms of cancer. The prize by the Gairdner Foundation is Canada’s most prestigious science award and recognizes world-renowned researchers for their groundbreaking work of great importance to medicine and human health.