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  1. Health & Medicine

    Brain may sabotage efforts to lose weight

    The brains of obese people act hungry whether their bodies are or not.

    By Janet Raloff
  2. Humans

    Humans

    The dark side of online deals, why cockiness is advantageous and more in this week's news.

    By Science News
  3. Earth

    Pacific volcanoes share split personality

    The dual chemistry of island chains reflects variations in the distribution of ancient material bubbling up from deep within the Earth.

    By Alexandra Witze

  4. Loss of eyes in the sky hurts science on the ground

    In a clean room at the Vandenberg Air Force Base in California sits the next great hope of the United States’ Earth-monitoring program.