Articles on ITER

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The coils winding facility building in France, where a global effort to build the ITER fusion energy reactor is underway. Rob Crandall/Shutterstock.com

Why nuclear fusion is gaining steam – again

As fusion becomes more technically viable, it's time to assess whether it's worth the money because breakthroughs in the lab don’t guarantee success in the marketplace.
The superheated plasma inside the fusion reactor is twisted by magnetic fields. IPP, Matthias Otte

A new twist on fusion power could help bring limitless clean energy

Fusion power, if it works, offers vast amounts of clean energy and almost zero carbon emissions. A new experimental fusion reactor has come online, and it uses a curious twisted stellarator design.
The Joint European Torus (seen here with a superimposed image of a plasma) is one of the machines helping to unlock fusion power. Wikimedia Commons

Nuclear fusion, the clean power that will take decades to master

Why don't we have nuclear fusion power yet? Because it involves taming plasmas at temperatures far hotter than the Sun's core. But the good news is that physicists are slowly but surely figuring out how.

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