News

  1. Astronomy

    Unusual three-star system promises new test of gravity

    A unique stellar threesome could help astronomers test the leading theory of gravity to unprecedented precision.

    By Gabriel Popkin
  2. Neuroscience

    Hormone hampers effects of marijuana

    Study of pot-blocking brain chemical in rodents could lead to new treatments for cannabis addiction.

    By Laura Sanders
  3. Astronomy

    Relic of early universe found nearby

    A galaxy little changed since the dawn of the universe shows up in our celestial neighborhood.

    By Christopher Crockett
  4. Animals

    Smoker’s breath saves caterpillars’ lives

    Larvae of the tobacco hornworm caterpillar exhale nicotine, driving away predatory spiders.

    By Susan Milius
  5. Health & Medicine

    Vitamin E might limit Alzheimer’s decline

    A trial of vitamin E in elderly veterans with Alzheimer’s shows promise for those in the early stages of the disease.