News

  1. Life

    Cloning produces human embryonic stem cells

    Fine-tuning of technique used in other animals could enable personalized medicine.

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  2. Physics

    Low-energy laser makes leap toward practicality

    Researchers have created a polariton device that runs on electricity.

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  3. Animals

    Tamed fox shows domestication’s effects on the brain

    Gene activity changes accompany doglike behavior in foxes bred over more than 50 years.

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  4. Life

    Fossils point to ancient ape-monkey split

    Apes and monkeys split from a common ancestor more than 25 million years ago, fossil finds suggest.

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  5. Earth

    Groundwater isolated for eons

    At least 1.5