Dust Maps Reveal How Light Bends in Clouds

Dust in space isn’t just a nuisance for stargazing; it shapes everything we see. It dims and reddens starlight, hides newborn suns, and challenges astronomers who try to read the cosmic forest of gas and dust. The story of how that dimming works—its wavelength dependence, its variations from cloud to cloud—is a fingerprint of the…

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AI’s Secret Weakness: Nested Tori Reveal Limits of Prediction

Imagine a clockwork universe, exquisitely intricate, where the gears are not physical but mathematical—a universe governed by polynomial equations. For over a century, mathematicians have wrestled with a seemingly simple question within this universe: how many stable, repeating patterns (limit cycles) can exist in a system described by planar polynomial equations of a given degree?…

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A Few Layers Quietly Fuel AI Math Reasoning

Hidden inside the soaring performances of large language models is a stubborn mystery: where does math reasoning actually live in the network? For readers who have tracked AI progress, it’s tempting to think improvements come from sweeping changes across the whole brain of the model, like a software update that rewires every neuron to think…

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Stellar Winds: A Galactic-Scale Breeze?

Imagine a colossal cosmic blowtorch, not of fire, but of stellar winds. This isn’t some sci-fi fantasy; it’s the reality of young, massive star clusters, where hundreds of stars, each a powerhouse of radiation and expelled matter, collectively carve out enormous cavities in the surrounding interstellar medium. A new semi-analytic model, developed by Stanley P….

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Cylinders and symmetry reveal hidden geometry of weighted Fano threefolds

What stirs beneath the weighted velvet of Fano threefolds Fano threefolds are among the most storied objects in algebraic geometry: compact shapes that embody a delicate balance between curvature, symmetry, and latitude for curiosity. When you dress them in weights—giving each coordinate its own scale—you get quasi-smooth weighted hypersurfaces, a realm where geometry fuses with…

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Do tilted disks remix a black hole’s image?

Lead insight: light around a black hole is not a simple halo but a performance—a chiral, gravitational ballet choreographed by how we view the scene. A Schwarzschild black hole, the simplest non-spinning model, makes a crisp circular shadow when lit by a distant blanket of light. But the real-world glow from an accretion disk—gas and…

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Is Time Itself Entangled?

Physicists have long grappled with entanglement, that bizarre quantum phenomenon where particles become intertwined, their fates mysteriously linked regardless of distance. But what if entanglement isn’t just a spatial affair? What if time itself is entangled? A New Kind of Entanglement That’s the provocative question posed by a recent paper from Ghent University and the…

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