France's global nuclear fusion device a puzzle of huge parts

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Assembly hall at the construction site of the ITER ( the International Thermonuclear Experimental Reactor), where components for the ITER Tokamak will be pre-assembled before integration into the machine in the CEN of Cadarache, in Saint-Paul-Lez-Durance, southern France, Tuesday, July 28, 2020. A project of daunting proportions and giant ambitions replicating the energy of the sun is entering a critical phase as scientists and technicians begin piecing together massive parts built around the globe of a nuclear fusion device, an experiment aimed at showing that clean energy, free of carbon emissions, can keep our planet humming. (AP Photo/Daniel Cole)