The challenges facing nuclear fusion as a clean power source. The energy released by nuclear fission heats water into steam. That steam spins a turbine to produce carbon-free electricity.

“Getting a self-heated fusion chain reaction to start is called ignition,” Bose said. “We are remarkably close to achieving ignition.” Researchers at Livermore reported impressive new gains in that ...

Science can’t be rushed, but fusion’s true believers think capturing the sun in a bottle could light humanity’s future.

Unlike wind and solar, fusion doesn't depend on weather conditions. And unlike coal and methane gas , it doesn't contribute to the pollution that causes respiratory illnesses and global overheating.

The end of this chain is marked by the fusion of protons with beryllium-7 to form boron-8. This process is key in determining the flow of high-energy solar neutrinos that reach the Earth.

If we could get to the point where a fusion reaction was controlled and self-sustaining long-term, the only energy input required would be the starting nudge to begin the chain reaction. "Fusion ...

The resulting reaction produced 3 megajoules of energy. For the first time in the history of fusion research, scientists achieved ignition — more energy was produced by the reaction than was ...

In a first, U.S. scientists have created “net energy” through a nuclear fusion reaction, the Department of Energy announced Tuesday. The successful experiment, which took place Dec. 5 at ...