US scientists reveal a breakthrough on fusion energy that could one day help curb climate crisis if companies can scale up technology to a commercial level in coming decades
US researchers have announced a historic nuclear fusion breakthrough, hailing a "landmark achievement" in the quest for a source of unlimited, clean power and an end to reliance on fossil fuels.
However, there is still a long way to go before fusion is viable on an industrial scale, providing power to homes and businesses. "They shot a bunch of lasers at a pellet of fuel and more energy was released from that fusion ignition than the energy of the lasers," explained White House science advisor Arati Prabhakar.For the experiment, researchers at LLNL used 192 ultra-powerful lasers to deliver 2.05 megajoules of energy to a tiny capsule smaller than a pea containing isotopes of hydrogen.While the result was a net energy gain, 300 megajoules of energy were needed from the electrical grid to power the lasers.
Nuclear power plants around the world currently use fission — the splitting of a heavy atom's nucleus — to produce energy.
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