U.S. physicists are reporting they've created more energy than ever before from a laser-triggered fusion reaction.
Fusion is the reaction that occurs in the interiors of stars, including Earth's own sun. Theoretically, fusion could be a source of abundant, cheap, green energy. Yet in more than 50 years of research, scientists have been unable to get more energy out of fusion than they put in.
That's still an elusive goal. The recent experiments, done at the U.S. National Ignition Facility, created something on the order of one percent of the energy physicists put into them. Nevertheless, this latest effort solves some important science problems, scientists outside of the facility say.