Scientists say the path to commercial fusion power may hinge on better ways to measure the behavior of superheated plasma.

Fusion power’s biggest question remains unanswered: how do you ensure the cost to start the fusion reaction isn’t higher than the price at which you can sell the power? Plenty of people have ideas, ...

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 ...