News

  1. Life

    Sperm swim against the current

    Human and mouse sperm both follow upstream currents to the egg.

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  2. Life

    Impact craters may have been a toasty home for early life

    The heat generated during a cosmic crash could have nurtured ancient organisms.

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  3. Space

    Radiation ring around Earth mysteriously appears, then dissipates

    Space probes detect temporary transition from two radiation belts to three, possibly in response to solar activity.

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  4. Psychology

    Video games take aim at dyslexia

    Playing action video games gives a literacy boost to dyslexic children who read poorly, a disputed study suggests.