BBC: North Korea has announced that it is going to restart all facilities at its Yongbyon nuclear complex. The decision comes in the wake of a series of nuclear tests and threats against South Korea and the US. Closed in July 2007 as part of a disarmament deal, the Yongbyon reactor had provided plutonium for North Korea’s nuclear weapons program. Although it is being restarted ostensibly to generate more electricity, it could also be used to enrich uranium to weapons-grade levels. The US has been monitoring the situation and, according to White House spokesman Jay Carney, has seen no “changes to the North Korean military posture, such as large-scale mobilizations and positioning of forces.” Nevertheless, the US has sent a warship to the South Korean coast and will be placing a radar platform in the western Pacific.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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