A major hurdle to producing fusion energy using lasers has been swept aside, results in a new report show.
The controlled fusion of atoms - creating conditions like those in our Sun - has long been touted as a possible revolutionary energy source.
However, there have been doubts about the use of powerful lasers for fusion energy because the "plasma" they create could interrupt the fusion.
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"For the first time ever in the 50-year journey of laser fusion, these laser-plasma interactions have been shown to be less of a problem than predicted, not more," said Mike Dunne, director of the UK's Central Laser Facility and leader of the European laser fusion effort known as HiPER.
"I can't overstate how dramatic a step that is," he told BBC News. "Many people a year ago were saying the project would be dead by now."
