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  1. Earth

    Oxygen wafted into Earth’s atmosphere earlier than thought

    Date pushed back to 3 billion years ago, suggesting photosynthesis had evolved by then.

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  2. Life

    Immune protein explains skin diseases’ link to infection

    Molecule called IL-29 protects people with psoriasis from viruses.

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  3. Psychology

    Mental rotation gears up by age 5 for both boys and girls

    Kid-friendly test suggests that the ability to visualize objects from different angles starts early.

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  4. Health & Medicine

    Dextrose rub helps newborns with low blood sugar

    Massaging the sugary gel into babies’ mouths may lessen the need for intravenous infusions of glucose, a study shows.

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  5. Animals

    Vampire reality check

    A vampire bat drinks one meal a night, and missing just three nights in a row would probably kill the animal.

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  6. Animals

    Feedback

    Readers respond to "Collision course" and "The tune wreckers" from our September 21 issue, plus some feedback on the new website.

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  7. Planetary Science

    Comet belt predicted near farthest planet

    Observations have confirmed the existence of the Kuiper Belt, first proposed in 1963.

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  8. Paleontology

    Dinosaur dreams dashed

    Fans of 'Jurassic Park' may be disappointed (or possibly relieved) to learn that you can’t get ancient DNA from amber.

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  9. Earth

    Biggest volcano hulks deep

    Tamu Massif forms a broad, rounded dome rising about 4 kilometers from the seafloor and stretching 450 by 650 kilometers across.

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  10. Science & Society

    A new look and other fruits of our digital experiments

    Science News has reinvented itself many times over the decades, and while our latest incarnation pushes us into the digital future, our mission remains unchanged: to translate the latest advances of science into an easy-to-read form.

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  11. Life

    Killer cells trained on leukemia may protect some people

    Immune system seems to remember cancer in people who've never had it, a new study suggests.

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  12. Neuroscience

    Some schemes to boost brainpower are too clever by half

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