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. The major advance in fusion research announced in Washington on Tuesday, Dec. 13, 2022, was decades in coming, with scientists for the first time able to engineer a reaction that produced more power than was used to ignite it. (Damien Jemison/Lawrence Livermore National Laboratory via AP)
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