News

  1. Genetics

    Here’s why wounds heal faster in the mouth than in other skin

    Wounds in the mouth heal speedily thanks to some master regulators of immune reactions.

    By Tina Hesman Saey
  2. 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
  3. 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
  4. 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.