News

  1. Planetary Science

    Mars’ ionosphere mystery explained

    A decades-old disagreement between the Viking landers and spacecraft buzzing around Mars might come down to what time of day each was investigating the Red Planet’s ionosphere.

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  2. Health & Medicine

    Caffeine resets body’s clock

    Caffeine can push the body’s clock back.

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  3. 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.

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  4. Animals

    Dogs flub problem-solving test

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

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  5. 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.