Our brother and uncle Reinhard Hesse, Emeritus Professor at the Department of Earth & Planetary Sciences of McGill University, died on May 3, 2023 in Montreal, Canada after a fulfilling life at the age of 87. He dedicated his life to science. We say goodbye to Reinhard with love and commemoration . Sigrun Hesse-Callaway (sister) with Marvin, Wolfgang Hesse (brother) with Monika, Roland Hesse (nephew), Dorothea Wolff (niece), Holger Hesse (nephew).