Physicists at a European nuclear fusion lab have worked out a way to obtain more energy from fusion reactors than previously thought, surpassing a limit that existing reactors had been adhering to.
Nuclear fusion is the process by which two atoms join together, producing a heavier element from two lighter ones. When this happens, energy is released.
Nuclear fusion happens all the time inside the sun, where hydrogen atoms combine under intense heat and pressure to form helium atoms. This releases even more energy which keeps the whole process going.
