News

  1. Planetary Science

    What does Mars’ lake mean for the search for life on the Red Planet?

    A lake spotted hiding under Martian ice could support life, but finding out if anything lives there could be challenging.

    By Lisa Grossman
  2. 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
  3. 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
  4. 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.