U.S. conducted first subcritical nuclear test since September 2021
"The NNSA, an arm of the U.S. Energy Department, said in a statement issued Thursday that it "relies on subcritical experiments to collect valuable information to support the safety, security, reliability and effectiveness of America's nuclear warheads, without the use of nuclear explosive testing."
It said the experiment was executed Tuesday evening in the Principal Underground Laboratory for Subcritical Experimentation facility at the Nevada National Security Site.
The United States suspended underground nuclear tests in 1992 and began subcritical nuclear tests five years later. ..."
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Reference: kyodonews.net
