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  1. Nuclear fission - Wikipedia

    Nuclear fission produces energy for nuclear power and drives the explosion of nuclear weapons. Both uses are possible because certain substances called nuclear fuels undergo fission when struck by …

  2. Fission and Fusion: What is the Difference? - Department of Energy

    Apr 1, 2021 · Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atoms—also known as fission products. Additional neutrons are also released that can …

  3. Nuclear fission | Examples & Process | Britannica

    Mar 20, 2026 · Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass. The process is accompanied by the release of …

  4. Nuclear Fission Definition and Examples

    May 13, 2023 · Nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei. This process often produces gamma …

  5. The Fission Process – MIT Nuclear Reactor Laboratory

    When a U-235 nucleus absorbs an extra neutron, it quickly breaks into two parts. This process is known as fission (see diagram below). Each time a U-235 nucleus splits, it releases two or three neutrons. …

  6. Fission - Understand Energy Learning Hub

    Nuclear fission is the process of splitting a large atom into two smaller atoms and releasing a LOT of heat, making it an extremely energy dense resource. That heat is used to boil water, make steam, …

  7. 11.9: Nuclear Fission and Nuclear Fusion - Chemistry LibreTexts

    Feb 18, 2026 · This page covers nuclear fission and fusion processes, emphasizing their energy-release mechanisms and the role of nuclear binding energy. Fission involves splitting large atoms, while …

  8. What is Fission? - Live Science

    Jul 19, 2023 · Fission is the process by which an atom splits into two, generating two smaller atoms and a tremendous amount of energy. Fission powers nuclear bombs and power plants.

  9. What Is Nuclear Fission? The Physics Behind Atomic Power

    May 25, 2025 · Nuclear fission is the process by which the nucleus of an atom splits into two or more smaller nuclei, accompanied by the release of a large amount of energy. This seemingly simple …

  10. Lethal conflict after group fission in wild chimpanzees

    Apr 9, 2026 · Territorial conflicts in animals can inform aspects of human warfare, but civil war, with its shifting group identities, has not been previously observed. We report a rare, permanent fission in …