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Technology

The success of machine mathematicians shows us how to be OK with AI

Many people who try using AI are disappointed with the results and feel they can’t trust a machine – but are there lessons we can learn from how AI is taking on mathematics?

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How a midlife tune-up could help prepare you for a healthy old age

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Dark Matter Core Defies Explanation NASA ID: GSFC_20171208_Archive_e001774 NASA image release March 2, 2012 This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of the merging galaxy cluster Abell 520, formed from a violent collision of massive galaxy clusters. The natural-color image of the galaxies was taken with NASA's Hubble Space Telescope and with the Canada-France-Hawaii Telescope in Hawaii. Superimposed on the image are "false-colored" maps showing the concentration of starlight, hot gas, and dark matter in the cluster. Starlight from galaxies, derived from observations by the Canada-France-Hawaii Telescope, is colored orange. The green-tinted regions show hot gas, as detected by NASA's Chandra X-ray Observatory. The gas is evidence that a collision took place. The blue-colored areas pinpoint the location of most of the mass in the cluster, which is dominated by dark matter. Dark matter is an invisible substance that makes up most of the universe's mass. The dark-matter map was derived from the Hubble Wide Field Planetary Camera 2 observations, by detecting how light from distant objects is distorted by the cluster galaxies, an effect called gravitational lensing. The blend of blue and green in the center of the image reveals that a clump of dark matter resides near most of the hot gas, where very few galaxies are found. This finding confirms previous observations of a dark-matter core in the cluster. The result could present a challenge to basic theories of dark matter, which predict that galaxies should be anchored to dark matter, even during the shock of a collision. Abell 520 resides 2.4 billion light-years away. To read more go to: www.nasa.gov/mission_pages/hubble/science/dark-matter-cor... Credit: NASA, ESA, CFHT, CXO, M.J. Jee (University of California, Davis), and A. Mahdavi (San Francisco State University)

Space

Why cosmology seems to be caught in a vibe shift

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Why the sleep industry has got us worrying about the wrong things

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We need to get better at identifying postpartum depression in dads

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Rethinking our approach to BMI highlights the need for speed

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Personalised medicine is yet to deliver, but that must start to change

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Personalised medicine is yet to deliver, but that must start to change

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It would be a mistake to rush into an under-16 social media ban

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It would be a mistake to rush into an under-16 social media ban

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Life

How – and why – we chose the best 21 ideas of the 21st century

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AI is promising to revolutionise how we diagnose mental illness

As rates of mental health conditions like depression spike, we desperately need new ways of identifying and treating people in distress. When it comes to giving artificial intelligence a role, though, guarding against its many flaws will be vital

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Mind

Making autism into a partisan issue can only be harmful

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2026 is set to be an even bigger year for weight-loss drugs

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New Year's resolutions work better if you know what to measure

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Science still produced many wonders in 2025 despite being under siege

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