News

  1. Health & Medicine

    Vital flaw

    Liver cells that inherit the wrong number of chromosomes often do just fine, and may even have some advantages.

    By Tina Hesman Saey
  2. Life

    Flies off-kilter

    In a newly described species, some males have one limb bigger than the other.

    By Susan Milius
  3. Health & Medicine

    Enzyme might underlie some stroke damage

    Inhibiting NOX4 in mice limits brain injury, tests show.

    By Nathan Seppa
  4. Planetary Science

    Life’s cold start

    Primordial molecules could have replicated themselves in a slushy place, new experiments suggest.

    By Rachel Ehrenberg
  5. Tech

    A compass that lights the way

    Researchers develop a highly sensitive optical instrument for measuring magnetic fields.