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flag Webb Telescope creates sharpest map of dark matter, revealing cosmic web's evolution over 10 billion years.

flag NASA's James Webb Space Telescope has produced the most detailed map of dark matter to date, revealing the invisible cosmic web that shapes the universe. flag By analyzing gravitational lensing from hundreds of thousands of distant galaxies, scientists mapped dark matter's distribution across 10 billion years and a vast sky region, uncovering new galaxy clusters and filaments connecting them. flag The map, twice as sharp as previous Hubble-based efforts, offers unprecedented insight into how dark matter has clumped over time, aiding efforts to understand its role in galaxy formation and the universe’s large-scale structure. flag The findings, published in Nature Astronomy, mark a major advance in observational cosmology.

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