
The World’s Biggest Fusion Bet Heads Toward Reality in France
In southern France, ITER—the world’s largest fusion reactor and a $22 billion multinational project—strives to sustain 150-million-degree plasma in a tokamak using superconducting magnets, aiming to prove fusion can provide abundant, emission-free energy; despite delays, heat-shield cracks, and a $5 billion cost overrun, ITER’s open-science model and global collaboration are shaping the path for private fusion startups.










