US scientists announce fusion energy breakthrough
Secretary of Energy Jennifer Granholm, joined at right by Arati Prabhakar, the president's science adviser, announces a major scientific breakthrough in fusion research that was made at the Lawrence Livermore National Laboratory in California, during a news conference at the Department of Energy in Washington, Tuesday, Dec. 13, 2022. Credit: AP Photo/J.
This undated image provided by the National Ignition Facility at the Lawrence Livermore National Laboratory shows the NIF Target Bay in Livermore, Calif. The system uses 192 laser beams converging at the center of this giant sphere to make a tiny hydrogen fuel pellet implode. Officials at the Department of Energy say on Tuesday, Dec. 13, 2022, there will be an announcement of a “major scientific breakthrough” on nuclear fusion.
Fusion works by pressing hydrogen atoms into each other with such force that they combine into helium, releasing enormous amounts of energy and heat. Unlike other nuclear reactions, it doesn't create radioactive waste. Riccardo Betti, a professor at the University of Rochester and expert in laser fusion, said an announcement that net energy had been gained in a fusion reaction would be significant. But he said there's a long road ahead before the result generates sustainable electricity.
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