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Nuclear fusion is a reaction in which two or more atomic nuclei combine to form one or more different atomic nuclei and subatomic particles, releasing or absorbing energy. Learn about the concept, history, process and applications of nuclear fusion, such as in stars, hydrogen bombs and fusion reactors.
Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei, releasing large amounts of energy and neutrons. Learn about the discovery, mechanism, products, and uses of fission for nuclear power and weapons.
The waste byproduct of a fusion reaction is far less radioactive than in fission, and decays far more quickly. The upsides to fusion over fission have long been known to scientists.
A controlled fusion reaction releases around four million times more energy than burning coal, oil or gas, and four times more than fission, the kind of nuclear energy used today. It won’t be ...
Fusion power is a proposed form of power generation that would use heat from nuclear fusion reactions to produce electricity. Learn about the mechanisms, challenges, and potential advantages of fusion reactors, and the difference between fusion and fission.
Unlike fission, nuclear fusion also has the added benefit of being self-sustaining without creating harmful waste. However, achieving and controlling fusion has been a lot more difficult for ...
A thermonuclear weapon, also known as a fusion bomb or hydrogen bomb, is a second-generation nuclear weapon that uses fusion reactions to achieve vastly greater destructive power than fission bombs. Learn about the basic components, principles, tests, and effects of thermonuclear weapons, as well as the Teller–Ulam design and the most powerful bomb ever detonated.
Learn how fusion research started in the 20th century and how it evolved to explore various approaches and applications. The web page covers the early discoveries, experiments, theories and devices related to fusion, from 1920 to 1950.