American scientists repeatedly produce nuclear fusion ignition for the first time in history
Nuclear fusion just cleared a crucial bar: scientists at California’s Lawrence Livermore National Laboratory have now achieved ignition four separate times, with the best shot producing 89 percent more energy than the lasers delivered to the target. That repetition is what transforms a single 2022 breakthrough into real, replicable science — proof that the Sun-like reaction can be coaxed out of a frozen hydrogen pellet on Earth, again and again. Momentum is building beyond the lab, too, with more than $6 billion now invested in fusion worldwide and governments at COP28 agreeing to speed things along. The road from a boiled kettle’s worth of energy to a clean-powered grid is still long, but the hardest physics is finally behind us.









