Nuclear energy, driven by recent advancements and 30 years of progress, is key to decarbonising energy and transportation. Innovations like small modular reactors, advanced designs, and micro reactors for naval and space use will contribute, alongside integration with renewables, to ensure diversified and resilient energy systems. PHYSOR 2026 will be the perfect occasion to nourish the spirit of the international collaboration, showing the crucial role of the reactor physics community in delivering physical comprehension, methods, codes, and concepts to the nuclear industry and society in this unique historical moment.