News

  1. Health & Medicine

    Morbid Mystery Tour: Epidemic from China is encircling globe

    An outbreak of deadly pneumonia that apparently began in southern China spread in March to at least two other continents, including North America.

    By Ben Harder
  2. Paleontology

    Fine Toothcomb: New fossils add to primate-origins debate

    The discovery of 40-million-year-old teeth and jaw fragments belonging to ancient forms of lorises and bushbabies doubles the age of the fossil record for a major primate group.

    By Bruce Bower
  3. Materials Science

    A Hard Little Lesson: Squeezed nanospheres grow superstrong

    A substance not known for its hardness—silicon—becomes one of the hardest of materials when formed into ultrasmall spheres.

    By Peter Weiss
  4. Earth

    Dioxin Dumps: Burning exposed trash pollutes soil

    The practice of burning refuse in the open in many underdeveloped countries creates prodigious quantities of harmful polychlorinated compounds.