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

PARIS (AP) — A hugely ambitious project to replicate the energy of the sun is entering a critical phase, as scientists and technicians in southern France begin assembling huge parts of a nuclear fusion device, an international experiment aimed to develop the ultimate clean energy source. World leaders involved in the project on Tuesday appeared virtually at a ceremony for the start of the new stage of the International Thermonuclear Experimental…