In a breakthrough experiment, nuclear fusion finally makes more energy than it uses
The long-awaited achievement raises hopes for developing a clean energy source
![an illustration of a nuclear fusion experiment showing dozens of blue laser beams pointing at a capsule-shaped object with three red rings inside, and a white orb at the center](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/12/121222_jr_nuclear-fusion_feat.jpg?fit=1030%2C580&ssl=1)
In an experiment (illustrated), blasts from 192 powerful lasers at the National Ignition Facility in Livermore, Calif., ignited nuclear fusion in a pellet of fuel that, for the first time, provided more energy out than the lasers put in.
LLNL