News

  1. Planetary Science

    Mars (probably) has a lake of liquid water

    A 15-year-old Mars orbiter has spotted signs of a salty lake beneath the Red Planet’s south polar ice sheets.

    By Lisa Grossman
  2. Health & Medicine

    Lowering blood pressure may help the brain

    Aggressively treating high blood pressure had a modest positive effect on the development of an early form of memory loss.

    By Aimee Cunningham
  3. Physics

    The Planck satellite’s picture of the infant universe gets its last tweaks

    Scientists have released the last big result from the cosmic microwave background experiment Planck.

    By Emily Conover
  4. Tech

    A new kind of spray is loaded with microscopic electronic sensors

    For the first time, researchers have built circuits on microscopic chips that can be mixed into an aerosol spray.