The International Thermonuclear Experimental Reactor (ITER) is one of the largest and most expensive science projects in history. Thirty-five nations are working together to build a massive magnetic fusion device in France to prove the feasibility of nuclear fusion as a large-scale and carbon-fr...
Source: [The Atlantic](https://www.theatlantic.com/photography/2026/06/photos-building-the-worlds-largest-fusion-reactor/687667/?utm_source=feed)