On the site of a former U.S. Army Reserve base near Boston, an unusual structure is rising from the rolling hills. Brandon Sorbom, the scientific director of Commonwealth Fusion Systems (CFS), leads me toward the center of the building’s cross-shaped ...

The future of carbon-free energy smells like teriyaki and sounds like a low-flying 737. A sleepy strip mall beside Boeing’s sprawling campus in Everett, WA isn’t necessarily where you’d expect to find technology promising to harness the power of the ...