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  1. 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 …

  2. Nuclear Power Reactors in the World | IAEA

    Sep 4, 2025 · This is the 44th edition of Reference Data Series No. 2, which presents the most recent reactor data available to the IAEA. It contains summarized information as of the end of …

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

    Nov 11, 2025 · The heat warms the reactor’s cooling agent, typically water, to produce steam. The steam is then channelled to spin turbines, activating an electric generator to create low …

  4. What are Molten Salt Reactors (MSRs)? | IAEA

    Mar 11, 2025 · Molten Salt Reactors (MSRs) are nuclear fission reactors in which either the fuel and/or the coolant is a molten salt. Molten salt is salt which liquifies at elevated temperatures …

  5. 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 …

  6. Frequently Asked Chernobyl Questions - International Atomic …

    1. What caused the Chernobyl accident? On April 26, 1986, the Number Four RBMK reactor at the nuclear power plant at Chernobyl, Ukraine, went out of control during a test at low-power, …

  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 …

  8. IAEA Mission Observes Commitment to Safety at Research Reactor …

    Jun 20, 2025 · The INSARR team visited the reactor and its associated facilities and met with the research reactor staff and management. “Nuklear Malaysia has shown a commitment to safety …

  9. Fast-neutron reactors, Fast nuclear reactors | IAEA

    Jan 18, 2022 · It is generally recognized that long term development of nuclear power as part of the world's future energy mix will require fast reactor technology with a closed fuel cycle. The …

  10. ITER: The World's Largest Fusion Experiment

    This nuclear fusion reactor will sit at the heart of a 180-hectare site, together with auxiliary housing and equipment. The immense scale of ITER, Latin for “the way”, will considerably …