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About
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Machine
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Science
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Building Iter
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News & Media
About
An introduction to the project's goals, history, organization, location...Machine
One million components, ten million parts — find out more about the ITER Tokamak and its systems.Science
Bringing a star to Earth? Explore the science of ITER.Building Iter
Follow the construction of the world's largest tokamak in southern France.News & Media
The latest photos, videos and publications from the ITER Organization.Top
On the road to ITER: milestones
Conceived as the last experimental step to prove the feasibility of fusion as a large-scale and carbon-free source of energy, ITER will be the world's largest tokamak, with ten times the plasma volume of the largest tokamak operating today.
A consortium of nations—China, the 28 states of the European Union plus Switzerland, India, Japan, Korea, Russia and the United States—is building ITER collaboratively, in an ambitious wager to advance fusion science and technology to the point where demonstration fusion power plants can be designed.
Construction is underway now in Saint-Paul-lez-Durance, France.