First Light Fusion presents first reactor-compatible path to "high gain" fusion, which would drastically reduce the cost of this limitless clean energy source. Gain (energy out divided by energy in – ...

British inertial fusion energy developer First Light Fusion has presented the first commercially viable, reactor-compatible path to 'high gain' fusion, which it says would drastically reduce the cost ...

Dark matter seems invisible, but it makes up most matter, and we have evidence that it gives the cosmos its shape. Now ...

Engineers in the United Kingdom are racing to build metal shields that can survive conditions similar to the center of the ...

Commonwealth Fusion Systems (CFS) said on Tuesday at CES 2026 that it had installed the first magnet in its Sparc fusion reactor, the demonstration device that it hopes to turn on next year. The ...

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 ...

Commonwealth Fusion Systems has agreed to sell Italian energy company Eni more than $1 billion worth of power from its first fusion reactor. The power plant will be built outside of Richmond, Virginia ...

Over the last several years, fusion power has gone from the butt of jokes — always a decade away! — to an increasingly tangible and tantalizing technology that has drawn investors off the sidelines.