News

  1. Earth

    Child-care sites, health threats

    Federal agencies have completed the first national study of lead, pesticides, and allergens in U.S. child-care facilities.

    By Ben Harder
  2. Animals

    Hawkmoths can still see colors at night

    For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.

    By Susan Milius
  3. Tech

    Resistancefree wire takes long jump

    A wire-making company has demonstrated a process that yields potentially inexpensive, high-current superconducting wires about 10 times longer than previous prototypes.

    By Peter Weiss
  4. Health & Medicine

    Study exonerates childhood vaccine

    A nationwide study in Denmark provides strong evidence that a childhood vaccine once blamed for some cases of autism plays no role in the development of that neurological disorder.