News

  1. Environment

    Home fires, farm fumes are leading causes of air-pollution deaths

    Deadly air pollution comes from surprising sources, but toxicity of different types is still up in the air.

    By Beth Mole
  2. Animals

    Dogs flub problem-solving test

    Confronting a tough task, dogs are more likely than wolves to give up and gaze at a human

    By Susan Milius
  3. Science & Society

    Short memory can be good strategy

    Game theory reveals that there’s a limit to the effectiveness of relying on prior results to predict competitors’ behavior.

    By Andrew Grant
  4. Materials Science

    Electron waves refract negatively

    Waves of electrons have been bent backward in a sheet of graphene, allowing physicists to focus electrons the way a lens focuses light.