News

  1. Physics

    String theory entangled

    Scientists forge an intriguing mathematical link between black holes and the physics of the very small.

    By Laura Sanders
  2. Earth

    Geomagnetic field flip-flops in a flash

    Rocks in Nevada preserve evidence of superfast changes in Earth’s magnetic polarity.

    By Alexandra Witze
  3. Health & Medicine

    Diabetes drug might fight cancer

    A widely prescribed medication with few side effects shows promise in both mice and humans.

    By Nathan Seppa
  4. Life

    Feud over family ties in evolution

    Prominent scientists dispute kinship’s role in self-sacrifice among highly social creatures.

    By Susan Milius
  5. Health & Medicine

    Alzheimer’s trade-off for mentally active seniors

    Staying mentally active may delay the onset of Alzheimer’s disease but may also prompt rapid cognitive decline once symptoms appear.