NPR (audio): Ambassador Christopher Hill, lead U.S. negotiator on the dismantlement of North Korea’s nuclear arms program, is headed to Beijing this week for talks that will also include Russia, China, Japan, and South Korea.
As Hill tells NPR’s Melissa Block, his immediate focus is getting North Korea’s Yongbyon nuclear reactor disabled for “many months...maybe a year.” He also intends to push for a complete declaration of North Korea’s nuclear programs.
An ultracold atomic gas can sync into a single quantum state. Researchers uncovered a speed limit for the process that has implications for quantum computing and the evolution of the early universe.
January 09, 2026 02:51 PM
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