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  1. Nuclear fusion - Wikipedia

    Nuclear fusion is a reaction in which two or more atomic nuclei combine to form a larger nucleus. The difference in mass between the reactants and products is manifested as either the release …

  2. Nuclear fusion | Development, Processes, Equations, & Facts ...

    Nov 9, 2025 · Nuclear fusion, process by which nuclear reactions between light elements form heavier elements. In cases where interacting nuclei belong to elements with low atomic …

  3. What is Nuclear Fusion? - International Atomic Energy Agency

    Aug 3, 2023 · Fusion reactions take place in a state of matter called plasma — a hot, charged gas made of positive ions and free-moving electrons with unique properties distinct from solids, …

  4. DOE Explains...Fusion Reactions | Department of Energy

    In fusion, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original …

  5. Nuclear Fusion Power - World Nuclear Association

    Jun 5, 2025 · Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy. Hydrogen, heated to very high temperatures changes …

  6. Understanding Nuclear Fusion: The Promise of Clean Energy

    Jul 27, 2025 · In its simplest form, nuclear fusion combines hydrogen nuclei —specifically isotopes like deuterium and tritium —into helium, releasing vast amounts of energy in the …

  7. Fusion - Understand Energy Learning Hub

    Nov 12, 2023 · Fusion reactions power the Sun and the stars. Fusion occurs when nuclei from two or more atoms are forced together (overcoming the Coulomb barrier*) and fuse to form a …

  8. FAQs | Nuclear Regulatory Commission - NRC

    Fusion machine is defined as “a machine that is capable of (1) transforming atomic nuclei, through fusion processes, into different elements, isotopes, or other particles; and (2) directly capturing …

  9. How nuclear fusion works - Explain that Stuff

    Oct 25, 2023 · As we've just discovered, the basis of nuclear fusion on Earth is converting deuterium and tritium to helium, with a big release of power as two unstable atoms rearrange …

  10. Nuclear fusion - Energy Education

    Nuclear fusion is a type of nuclear reaction where two light nuclei collide together to form a single, heavier nucleus. Fusion results in a release of energy because the mass of the new nucleus is …