Fusion Energy Sciences (FES)

Fusion Energy Sciences (FES) is a field focused on understanding and developing nuclear fusion—the process that powers the sun and stars—to produce clean, abundant energy on Earth. Fusion involves combining light atomic nuclei, like hydrogen isotopes, to form heavier ones, releasing a large amount of energy. Unlike nuclear fission, fusion produces minimal radioactive waste and has the potential for a nearly limitless energy source. FES research includes creating and controlling high-temperature plasmas, designing advanced reactors, and studying materials that can withstand extreme conditions—all aimed at making fusion a practical, sustainable energy option.