Sure, it’s a construction site now, but soon it’ll be the International Thermonuclear Experimental Reactor, or ITER, the world’s largest magnetic fusion device. Scientists from 35 countries are collaborating on this project in the hope of harnessing nuclear fusion, the same reaction that powers stars like the Sun.
Once operational, extreme heat and pressure inside the reactor will transform hydrogen gas into a swirling sea of plasma where fusion can occur and release vast amounts of energy.