News

  1. Humans

    Columbus’ arrival linked to carbon dioxide drop

    The depopulation of the Americas due to introduced European diseases may have spurred Europe's Little Ice Age.

    By Devin Powell
  2. Health & Medicine

    Vaccine makes headway against trachoma

    An experimental immunization might someday aid public health efforts to counter a blinding disease.

    By Nathan Seppa
  3. Chemistry

    Cloud seeding by trees could alter precipitation, climate

    Some tree pollens shed molecules that can affect precipitation.

    By Janet Raloff
  4. Life

    Fossil moth reveals colorful hue

    Paleontologists deduce how ridges on the creature’s wings would have reflected light.

    By Devin Powell
  5. Space

    European Planetary Science Conference and AAS Division for Planetary Sciences

    News from a joint conference held October 2-7 in Nantes, France.