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A major breakthrough in nuclear fusion has been confirmed a year after it was achieved at a laboratory in California.
Researchers at Lawrence Livermore National Laboratory’s (LLNL’s) National Ignition Facility (NIF) recorded the first case of ignition on August 8, 2021, the results of which have now been published in three peer-reviewed papers.
Nuclear fusion is the process that powers the Sun and other stars: heavy hydrogen atoms collide with enough force that they fuse together to form a helium atom, releasing large amounts of energy as a by-product. Once the hydrogen plasma “ignites”, the fusion reaction becomes self-sustaining, with the fusions themselves producing enough power to maintain the temperature without external heating.
Ignition during a fusion reaction essentially means that the reaction itself produced enough energy to be self-sustaining, which would be necessary in the use of fusion to generate electricity.
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Stock image of an atom. Results of nuclear fusion experiments that achieved ignition last year have no been confirmed in peer-reviewed papers. iStock / Getty Images Plus
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