For nuclear fusion to take place, a large amount of energy is needed.

It can be created through the process of nuclear fusion in the sun.

It's just not clear that anyone can figure out a way to control nuclear fusion.

Helium-4 is also made in nuclear fusion at the center of stars.

We spend that amount of money almost without thought on nuclear fusion.

The process of solar nuclear fusion was not yet known to science.

Like many, I watch and wonder as to whether nuclear fusion will ever become a reality.

However, commercial nuclear fusion is not yet an accomplished technology.

When nuclear fusion happens, it makes lots of energy and heat.

For the process by which stars shine see nuclear fusion.