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The week in Science
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The week connected present and projected ice loss with deeper climate dynamics. New estimates raised the risks from Arctic sea-ice decline and Thwaites Glacier while linking past ice ages to cross-hemisphere ocean circulation and noting faster global warming.
Observations and theoretical proposals revised how scientists understand the young universe, from the role of stellar winds in reionization to neutrino-driven matter survival. New reconstructions of the universe's first two billion years added to that testing effort.
AI systems produced mathematical results that may challenge established assumptions, while expert-guided work showed a broader move away from unchecked manuscript generation. The results remain provisional and require independent verification.
Experiments repeatedly converted presumed physical limits or abstract effects into controllable systems, including three-dimensional heat routing, higher-energy X-rays, emergent time, crack-resistant cryogenic alloys, and molecular switching.
Space activity shifted toward sustaining longer-lived operations, with new ISS power capacity, commercial support for Hubble, and competing plans for nuclear power on the Moon. The developments point from individual missions toward durable infrastructure.
Day’s Recap