Scientists Achieved Self-Sustaining Nuclear Fusion… But Now They Can't Replicate It
Scientists have confirmed that last year, for the first time in the lab, they achieved a fusion reaction that self-perpetuates (instead of fizzling out) – bringing us closer to replicating the chemical reaction that powers the Sun. However, they aren’t exactly sure how to recreate the experiment.
Related Knowledge Center: ENERGY BASICS: nuclear
Nuclear energy provides almost 20 percent of the U.S. electricity supply. Advocates have called for an expanded role for nuclear as an emissions-free fuel source. But the economics of building new reactors are daunting. In addition, lingering safety concerns are an institutionalized part of the calculation of nuclear regulation, and highly radioactive nuclear waste remains a can that public officials have been inclined to kick down the road. The Energy Information Administration projects a sharp decline in nuclear power generation over the next decade, as new nuclear plants — two are planned — are more than offset by anticipated retirements of several operating reactors.