er. He played a driving role in the development of the institute. In 2001 he returned to GSI to work on the GSI Future Project, now known as FAIR. The next seven years he worked as leader of the “FAIR [...] remembered by GSI and FAIR as outstanding scientist, treasured colleague and, even more important, as a marvelous person. His enthusiasm and openness for new ideas will remain in our hearts. GSI and FAIR thank [...] GSI and FAIR mourn the loss of an excellent scientist and pioneer of relativistic heavy ion physics. Professor Dr. Hans Gutbrod passed away on March 3, 2025, at the age of 82 years. After his dissertation