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 ...

Inside a French fusion experiment, a metal more associated with lightbulb filaments than star power just did something extraordinary. Tungsten, long considered too brittle and temperamental for the ...

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