With the potential to provide almost limitless energy, free of any radioactive by-product or greenhouse gases, nuclear fusion is the goal many are aiming to achieve.
Creating a system to harness the power of nuclearfusion is proving difficult, however. Now, researchers think they have taken a step closer to that goal.
It takes immense pressure and temperatures of about 150 million degrees to get atoms to combine in a fusion reactor. Runaway electrons can wreak havoc in the fusion reactors currently under development and could destroy a reactor without warning.