Phys.org
AI study reveals stark inequalities in global climate plans
Global climate commitments are far from equal, according to a new AI-driven analysis of pledges submitted to the United Nations by 158 countries. Researchers from Spain's University of Alicante and Universitat Politècnica de València found deep structural disparities in how nations are approaching — and resourcing — their climate plans. The findings raise serious questions about whether the current framework of national commitments can deliver the coordinated action the climate crisis demands.
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AI fast-forwards molecular simulations by 10,000-fold
A new AI model can predict molecular behavior at speeds up to 10,000 times faster than conventional simulation methods, dramatically cutting the time and cost of early-stage drug testing. By rapidly identifying promising candidates, the technology could compress drug development timelines that currently take years and billions of dollars. The advance marks a significant step toward making precision medicine discovery faster and more accessible.
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Cosmic dawn fuel discovery unlocks early galaxy growth secrets
Astronomers have identified a massive reservoir of cold molecular gas in REBELS-25, a distant galaxy observed when the universe was just 700 million years old. The discovery provides direct evidence of the raw fuel driving intense star formation in the early universe, offering a clearer picture of how galaxies grew so rapidly in their infancy. The findings, published in Monthly Notices of the Royal Astronomical Society, mark a significant step in understanding conditions at cosmic dawn.
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Scientists found the strength training sweet spot for a longer life
Decades of data from more than 147,000 people suggest that 90 to 120 minutes of strength training per week is the optimal range for reducing long-term mortality risk. That window was tied to meaningfully lower rates of death from cardiovascular and neurological causes. Pairing strength work with aerobic exercise amplified the benefits further, reinforcing the case for a balanced fitness routine.
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Nuclear clocks tick for the first time
Nuclear timekeeping has arrived. Two independent research teams — one at Tsinghua University, another at the Vienna Center for Quantum Science and Technology — have successfully built working nuclear clocks using the nucleus of a thorium-229 atom. The breakthrough could surpass the precision of today's best atomic clocks, with implications for everything from GPS accuracy to fundamental physics research.
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