All Stories

  1. Health & Medicine

    Obesity on the rise globally

    Some 2.1 billion people, almost 30 percent of the world’s population, are overweight or obese.

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  2. Health & Medicine

    ‘Bionic’ pancreas shows promise in diabetes test

    Tests of a “bionic pancreas” confirm that the wearable devices can maintain blood glucose levels without the need for finger pricks or insulin shots in patients with type 1 diabetes.

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  3. Quantum Physics

    How to build a quantum-entangled superclock

    A blueprint for a quantum-entangled superclock suggests that such a device could enable startlingly precise measurements of Earth’s terrain.

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  4. Paleontology

    ‘Dinosaurs Without Bones’ gives glimpse of long-gone life

    Ichnologist Anthony J. Martin explains his research piecing together dinosaurs’ lives from footprints and other traces.

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  5. Science & Society

    ‘Prisoners, Lovers, and Spies’ reveals the secrets of invisible ink

    Kristie Macrakis takes readers on a tour of invisible ink’s history and the need to hide information, from the earliest empires to the Internet age.

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  6. Animals

    Swimming evolved several times in treetop ants

    Certain ants living in tropical forest canopies turn out to be fine swimmers.

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  7. Animals

    Feedback

    Readers discuss mammal milk, ancient human genetics and hand washing techniques.

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  8. Tech

    Scientists struggle to find signals in the noise

    Even in a simple system like email, detecting the signal from the noise is not always easy. It can be even more difficult separating a dazzling discovery from dust or whether a breast mass is cancerous or benign.

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  9. Health & Medicine

    Mammography’s limits becoming clear

    It may be time to move way from blanket recommendations about mammography and empower women to decide for themselves, new work suggests.

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  10. Cosmology

    Dazzle or dust?

    The unpredictable glow of galactic dust could undermine the biggest cosmological discovery in years.

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  11. Earth

    Earth’s deep interior holds vast reservoir of water

    Ocean’s worth of water trapped in Earth’s mantle, lab experiments and seismic data suggest.

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  12. Animals

    It’s hard being a sea otter mom

    The energy requirements of lactation may explain why some female sea otters abandon their young.

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