The promise of abundant, clean energy powered by nuclear fusion is one big step closer thanks to a new experiment. The results are a historic scientific milestone, but energy production remains a ways off.

Harvard scientist Adam Cohen breaks down breakthrough that might prove major turning point in clean energy efforts — but not any time soon.

In January 2022, the JET fusion experiment produced more power over a longer period of time than any past attempt. Two physicists explain the engineering advancements that made the result possible.

Fusion produces more energy per gram of fuel than any other process that could be achieved on Earth.

Scientists are working on ways to make lots of energy by converting matter into energy. The trick is keeping the process under control. One possibility is nuclear fusion – the Sun's power source.

Building a mini star on Earth, and holding it together inside a reactor, is not an easy task.

Knowing how laser beams interact in a plasma—a hot soup of free moving electrons and ions—will boost the accuracy of computer models used in simulations of laser-driven implosions.