Proponents of nuclear fusion see it is as a clean and virtually limitless energy source that could power the future. But while researchers are confident they can make it work, realizing the long-held dream of fusion power is proving far from easy. Potentially offering an inexhaustible supply of zero-carbon energy, nuclear fusion has shown great promise for decades but is yet to be viable at scale because maintaining a fusion reaction requires more power than it generates. However, recent advances in the quest for fusion power have reignited hopes that it can be made feasible. Scientists in China have built a fusion reactor that in November became the first in the world […]