News

  1. Health & Medicine

    The coronavirus cuts cells’ hairlike cilia, which may help it invade the lungs

    Images show that the coronavirus clears the respiratory tract of hairlike structures called cilia, which keep foreign objects out of the lungs.

    By Erin Garcia de Jesús
  2. Planetary Science

    NASA’s Perseverance Mars rover has begun its first science campaign

    Now about 1 kilometer south of its landing spot, the rover has spotted several promising spots in its search for hints of ancient life.

    By Christopher Crockett
  3. Animals

    This butterfly is the first U.S. insect known to go extinct because of people

    A 93-year-old Xerces blue specimen’s DNA shows that the butterfly is a distinct species, making it the first U.S.