A delegation of visitors with French President and Indian Prime Minister visits the ITER (International Thermonuclear Experimental Reactor) in Saint-Paul-les-Durance, near Marseille southern France, on February 12, 2025. French President Emmanuel Macron and Indian Prime Minister Narendra Modi visit this Iter colossal construction site on February 12, 2025, located in the southeast of France, which aims to reproduce on Earth the nuclear fusion that powers the Sun and other stars. Mastering a source of energy "practically unlimited, clean, safe, and at an affordable cost." This is the goal of Iter, an ambitious international research project that faces considerable delays and cost overruns and is now competing with start-ups attracted by a booming market. (Photo by Laurent Cipriani / POOL / AFP) (Photo by LAURENT CIPRIANI/POOL/AFP via Getty Images)