News

  1. Suppressed thoughts rebound in dreams

    Thoughts that are consciously suppressed during the day often pop up in dreams, regardless of whether they involve emotionally charged desires, a new study suggests.

    By Bruce Bower
  2. Earth

    New U.N. treaty on toxic exports

    The United Nations enacted a new treaty to ban exportation of any of a list of toxic chemicals without the prior informed consent of an importing nation.

    By Janet Raloff
  3. Health & Medicine

    Phthalate exposure from drugs?

    Use of an ingestible prescription drug may explain the highest blood concentration of a chemical plasticizer ever observed.

    By Ben Harder
  4. Chemistry

    Microbes craft unusual crystals

    Bacteria dwelling in an abandoned iron mine form unusual crystals that could help scientists look for signs of previous life on Mars.