Both fission and fusion are nuclear reactions that produce energy, but the applications are different. Whereas fission entails the splitting of an atom into two lighter nuclei, fusion energy seeks to replicate the reaction that powers our Sun, where two very light atoms, such as hydrogen or helium, are fused together. The resulting fused atom ends up slightly lighter than the original two atoms, and the difference in mass is converted to energy.
The amount of energy released via fusion is several times greater than that produced by fission, and without generating high-level radioactive waste. As such, scientists hope to use the heat from fusion reactions to produce electricity. Devices designed to harness this energy are known as fusion reactors.
Nuclear fusion has the potential to disrupt the global energy markets by providing unlimited supplies of cheap, clean, safe, and carbon-free electricity . . .