NEW YORK (AP) — Scientists say they've taken a key step toward harnessing nuclear fusion as a new way to generate power, an idea that has been pursued for decades.
They are still a long way from that goal. The amount of energy they got out of their experimental apparatus was only about 1 percent of what they put into it.
But the hydrogen fuel put out more energy than it had absorbed. And scientists saw evidence that energy from the fusion reaction was going back into the remaining fuel. That's an encouraging sign for future improvements.
The results were reported Wednesday in the journal Nature.