From September 7–11, the HEiKA Summer Science Academy 2025 brought together master’s and final-year bachelor’s students at the Bildungshaus St. Bernhard in Rastatt. The academy was organized by the Heidelberg-Karlsruhe Strategic Partnership HEiKA in partnership with our Cluster 3DMM2O and the Flagship Initiative Engineering Molecular Systems of Heidelberg University. Participants attended hands-on workshops led by top researchers who covered topics such as biofabrication, responsive materials, stem cell dynamics, cancer evolution, and 3D lithography. The program provided a unique, immersive experience that fostered collaboration, exchange, and innovation at the intersection of molecular systems and 3D engineering.