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  1. Materials Science

    A charge for freezing water at different temperatures

    Experiments use positive and negative forces to control ice formation at temperatures well below the normal freezing point.

    By Lisa Grossman
  2. Science & Society

    In Memoriam: In life and death, a scientist brings out the best in others

    BLOG: Science News reporter Bruce Bower describes how relationship researchers gathered to honor Caryl Rusbult’s influential career after her recent death.

    By Bruce Bower
  3. Space

    Pluto blushes red

    Newly released Hubble images of Pluto show an abrupt and unexplained color change.

    By Ron Cowen
  4. Life

    Sperm’s pore propulsion

    Scientists identify a key proton channel that helps explain the dash to fertilization.