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> The laboratory confirmed that a successful experiment had recently taken place at its National Ignition Facility but said analysis of the results was ongoing.

> “Initial diagnostic data suggests another successful experiment at the National Ignition Facility. However, the exact yield is still being determined and we can’t confirm that it is over the threshold at this time,” it said. “That analysis is in process, so publishing the information . . . before that process is complete would be inaccurate.”