News

  1. Astronomy

    Some of TRAPPIST-1’s planets could have life-friendly atmospheres

    The seven planets orbiting TRAPPIST-1 are probably rocky and some may have life-friendly atmospheres, two new papers suggest.

    By Lisa Grossman
  2. Neuroscience

    A blood test could predict the risk of Alzheimer’s disease

    A blood test can predict the presence of an Alzheimer’s-related protein in the brain.

    By Laurel Hamers
  3. Animals

    A peek into polar bears’ lives reveals revved-up metabolisms

    Polar bears have higher metabolisms than scientists thought. In a world with declining Arctic sea ice, that could spell trouble.

    By Susan Milius
  4. Tech

    New laser emits a more stable, energy-efficient light beam

    A new type of laser could emit more stable, energy-efficient light beams than its conventional counterparts.