The Department of Energy is planning an announcement for Tuesday about a “major scientific breakthrough” at the Lawrence Livermore National Laboratory.
In this 2012 image provided by Lawrence Livermore National Laboratory, a technician reviews an optic inside the preamplifier support structure at the Lawrence Livermore National Laboratory in Livermore, Calif. Officials at the Department of Energy say on Tuesday, Dec. 13, 2022, there will be an announcement of a major scientific breakthrough on nuclear fusion.
Here's a look at exactly what nuclear fusion is, and some of the difficulties in turning it into the cheap and carbon-free energy source that scientists believe it can be.Look up, and it's happening right above you — nuclear fusion reactions power the sun and other stars. In the case of the sun, its intense heat — millions of degrees Celsius — and the pressure exerted by its gravity allow atoms that would otherwise repel each other to fuse.
One way scientists have tried to recreate nuclear fusion involves what's called a tokamak — a doughnut-shaped vacuum chamber that uses powerful magnets to turn fuel into a superheated plasma where fusion may occur.
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