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Princeton University is a private Ivy League research university in Princeton, New Jersey, noted for strengths in physics, economics, and public policy.
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Researchers who let supernova debris spread unevenly matched the element ratios of odd Milky Way halo stars as well as or better than a hypernova model did. That undercuts the chemical case for hypernovas, though MIT's Anna Frebel says they remain plausible.
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Nanjing University's Long Yang and coauthors argue in Nature Cities that cities alter their own storms through heat, building roughness and aerosols. They add that green roofs and sponge-city schemes built against floods and heat can feed back on local rainfall as well.
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Economists Leonardo D'Amico, Evan Soltas and Audrey Wang find approving a standard US apartment building took 1.5 years in 2023, up from 0.6 in 2000. For developers and city halls, that puts a number on the part of housing delay set by local review rules.
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Claude Opus 4.8 got six days, $3,000 in credits and a GPU budget to answer two unpublished NeurIPS questions. The papers' original authors graded the output and rejected both.
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Pulsar Fusion plans a 2027 space demo of a fusion engine that has so far briefly held krypton plasma in place. Helicity Space's CEO says space travel will change within a decade, though the only engine test described so far made plasma and reported no fusion.
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Labs at EPFL and the Weizmann Institute each measured quasiparticles with a quarter of an electron's charge in the ν = 1/2 quantum Hall state. The agreement settles the charge of a state thought to be non-Abelian, though the exchange behavior a topological qubit would need was not tested.
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Physicists mapped the electronic topology of 8,872 atomically thin materials and named over 1,600 twisting candidates in two Science papers. The lists are calculations that tell labs where to look, and testing them in twisted devices comes next.
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Gregory Scholes helped build the case for quantum coherence in photosynthesis after 2007 and now doubts it; his recent papers get quantumlike behavior out of networks of ordinary classical oscillators.
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In 79 US toddlers surveyed three times, words that parents said their child mostly overheard from adult conversation were recognised at 24 and 30 months but not at 18. Every measure came from the parents.
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Yale researchers read the original makeup of planetesimals that melted so thoroughly their textures vanished, and place the Solar System's preference for heat-formed rock beads inside the first million years.
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Rodrigo Adao and three co-authors used 2017-19 data from all 50 states and D.C. to infer whose income U.S. tariff policy treated as most valuable. The answer sorts by industry far more than by geography.
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A Yale-led team could not sample planetesimals from the first million years, because every one of them melted, so it reconstructed their make-up from sulfur and iron oxidation in iron meteorites and got 8% to 17% icy dust.
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Princeton's Max Springer says a publicly available AI assistant unshuffled Georgia's May primary ballot records and then told him which public files it needed to attach names to them. The flaw was documented in 2022.
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A Science Advances study ties winter pollution across northern India to how often Mediterranean storm systems arrive. The storm count is itself linked to ocean temperature patterns visible the previous autumn.
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PPPL's framework closes a full control loop in about 20 milliseconds, which gives it roughly ten passes of warning before the instability it predicted would have arrived, on a real tokamak in five experiments.
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Illinois chemists ran the reaction at room temperature in 20 minutes with no added catalyst. The harder question is what the new molecule is worth against the mill boiler that currently burns the feedstock.
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Eduardo Haddad and Inacio Araujo used the mint, date and findspot of coins recovered over two centuries of digging to argue that integration held the Republic together more than conquest did. The shape of the data sets the limits of that claim.
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Five experiments on the DIII-D tokamak let learned models predict plasma behaviour and command the heating, while error checking, conflict resolution and hardware limits stayed in stages where nothing was learned.
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Markus Brunnermeier's choke-point argument arrives with no rule text and no date attached. It hands supervisors a vocabulary. The cheapest response available to a bank is a register of the models it cannot operate without.
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MIT's committee says models can credibly do essentially every written assignment it sets, which turns the problem from dishonesty into the missing human interactions that education and training products were built to sell.
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