News

  1. Physics

    Vortex gets tied in knots

    Physicists use 3-D printing and tiny bubbles to capture twisted-up water.

    By Andrew Grant
  2. Health & Medicine

    Immune cells chow down on living brain

    Microglia prune developing rat and monkey brains by eating neural stem cells.

    By Meghan Rosen
  3. Life

    Camel ancestors lived in the Arctic

    Fossils on Ellesmere Island suggest famous desert dweller got its start in cold regions.

    By Erin Wayman
  4. Health & Medicine

    Baby may be cured of HIV

    Only viral traces remain after prompt treatment of newborn, suggesting no working virus is left in the girl’s body.

    By Nathan Seppa
  5. Health & Medicine

    News in Brief: HIV may increase heart attack risk

    A large study of veterans shows connection between HIV and heart attack in men.