Nuclear fusion advances, but challenges remain for power grid

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. ‘Special Report’ anchor Bret Baier reports on scientific research attempting to create fusion as a source of reliable energy and how artificial intelligence could help. Nuclear fusion originates in our sun and other stars. Immense pressure and high temperatures in the core create a reaction, ultimately preventing it from collapsing under the force of gravity. "The fusion here on Earth has a lot of corollaries to how we understand how the stars work in things like astrophysics," Commonwealth Fusion Systems CEO Bob Mumgaard said. "They both rely on studying plasma, the fourth state of matter. They both have the same types of reactions, and we use some of what we learn in how the stars work to inform how to build better fusion machines on Earth." US POWER CRUNCH LOOMS AS OKLO CEO SAYS GRID CAN’T KEEP UP WITHOUT NEW INVESTMENT The company is working to r