Uncategorized

  1. Physics

    A star orbiting a black hole shows Einstein got gravity right — again

    For the first time, general relativity has been confirmed in the region near a supermassive black hole.

    By Emily Conover
  2. 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
  3. 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
  4. 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.