News

  1. Health & Medicine

    Mucus prevents hand sanitizers from quickly killing the flu

    Flu viruses can hold out for minutes against ethanol when encased in wet mucus.

    By Tina Hesman Saey
  2. Health & Medicine

    Air pollution can reach the placenta around a developing baby

    A small study of women living in Belgium found soot embedded in their placental tissue.

    By Aimee Cunningham
  3. Space

    The Milky Way’s supermassive black hole reached record brightness this year

    The big black hole at the center of the galaxy recently flared twice as bright as ever seen before in near-infrared wavelengths.

    By Emily Conover
  4. Physics

    Gravitational waves from a ringing black hole support the no-hair theorem

    A new study of gravitational waves from merging black holes agrees with the predictions of the general theory of relativity.