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  1. What is Nuclear Energy? The Science of Nuclear Power

    Nov 11, 2025 · What is nuclear fission? Nuclear fission is a reaction where the nucleus of an atom splits into two or more smaller nuclei, while releasing energy. For instance, when hit by a neutron, the …

  2. Nuclear power reactors, reactor types and technologies | IAEA

    Nov 7, 2025 · Nuclear power reactors produce energy by initiating and controlling a sustained nuclear chain reaction. Currently, over 400 such reactors in 32 countries provide about 10 per cent of the …

  3. 2025 Wrapped: IAEA’s Most-Read Nuclear Explainers

    Dec 19, 2025 · 5. Nuclear Safety and Security Nuclear safety and security, which enables people to benefit from nuclear technology while protecting them and the environment from the harmful effects …

  4. Thorium’s Long-Term Potential in Nuclear Energy: New IAEA Analysis

    Mar 13, 2023 · In August 2021, China announced the completion of its first experimental thorium-based nuclear reactor. Built in the middle of the Gobi Desert in the country’s north, the reactor over the next …

  5. Five Reasons the Clean Energy Transition Needs Nuclear Power

    Jan 27, 2026 · Energy demand continues to grow globally. Nuclear power complements renewables by supplying constant power, smoothing variability and reducing reliance on fossil fuel backup during …

  6. The Nuclear Technology Review 2025 covers the following select areas: nuclear power, nuclear fuel cycle, decommissioning, environmental remediation and radioactive waste management, fusion …

  7. Nuclear Reactor Simulators for Education and Training

    These simulators provide efficient hands-on learning of the physics and engineering designs of various reactor types. The simulators operate on personal computers and are provided for a broad audience …

  8. Design of nuclear power plants | IAEA

    Mar 2, 2025 · The design of a nuclear power plant needs to consider specific site characteristics, operational aspects and future decommissioning plans so as to achieve the highest levels of safety. …

  9. International Atomic Energy Agency | Atoms for Peace and Development

    Nov 7, 2025 · Atoms for peace and development We are the world’s centre for cooperation in the nuclear field and seek to promote the safe, secure and peaceful use of nuclear technologies.

  10. What are Small Modular Reactors (SMRs)? | IAEA

    Sep 13, 2023 · Small modular reactors (SMRs) are advanced nuclear reactors that produce up to 300 MW (e) of low-carbon electricity, which is about one-third of the generating capacity of traditional …