Nuclear Fusion

Nuclear fusion has fascinated scientists for decades.

The process could provide virtually unlimited energy on Earth, but it's proving to be very challenging for scientists.

Dozens of universities and governments are racing to produce a limitless source of energy with no carbon emissions. Nuclear fusion is very different from nuclear fission, so scientists don't need to wear radioactive protection. Unlike nuclear fission, which powers hundreds of power stations around the world, nuclear fusion isn't commercially available.

The process occurs in every star in every galaxy in the universe, and the challenge for scientists is to create one on Earth. Despite billions of dollars of funding and decades of research into fusion, no experiment has ever produced a sustained fusion burn. Scientists can create fusion reactions, but they can't produce more energy than they need to start the fusion.

Difficult words:

Fusion (a nuclear reaction in which two or more atomic particles collide, releasing a lot of energy).Fission (a nuclear reaction in which a heavy atomic particle splits, releasing a lot of energy).

Sustained (going on for a long time).

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