A team of Chinese researchers has reported reaching a temperature of 100 million degrees Celsius—six times hotter than the ...

Experiments show fusion plasma can stay stable at higher densities by controlling reactor walls, challenging long-standing limits.

The machines at their center, called tokamaks, have evolved from experimental curiosities into instruments capable of sustaining confined plasma – matter so hot it mimics the ...

Fusion power has long been sold as the technology that could light our cities with the same process that powers the stars. Now a new line of research suggests those same reactors might also be ...

Engineers at the UK’s STEP (Spherical Tokamak for Energy Production) program have successfully tested ...

As countries around the world race to rid themselves of fossil fuels, nuclear fusion presents the ultimate opportunity in its promise of an effectively limitless supply of clean energy. While it's ...

Reactors designed to produce energy from the fusion of atoms could have an unexpected scientific side benefit. An international team of researchers has shown that low-mass dark-sector particles, such ...

The new experiment, published in Nature, uses a compact, room-temperature fusion reactor. It doesn’t aim for large-scale energy production—yet. Instead, it focuses on a way to improve the fusion ...

Preparation of the site at the Tennessee Valley Authority’s (TVA) Bull Run Energy Complex ...

A nuclear fusion reactor in Germany has reached world record numbers for runtime. The tokamak dominates fusion research in 2025, but stellarators are making a comeback. A stellarator is still a donut ...

Workers wear protective equipment in a cavernous hall that contains industrial equipment. The tokamak hall at Commonwealth Fusion Systems’ fusion energy facility in Devens, Massachusetts, will house ...