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  • Asteroid Impact?

    Asteroid Impact?

    Image of the Week

    A living foraminifer, Orbulina universa, in the act of shortening its spines in preparation for gametogenesis.

  • Sound and Vision

    Sound and Vision

    Image of the Week

    A mass of cells surrounded by blood vessels visualized in a living mouse using photoacoustic imaging.

  • Eat Your Vitamins

    Eat Your Vitamins

    Image of the Week

    Ascorbic acid, or Vitamin C, is an essential component of the human diet.

  • Written in Chalk

    Written in Chalk

    Image of the Week

    The world’s chalk deposits are made of fossilized remains of the shells of tiny microscopic algae.

  • The Shy Shark's Secret

    The Shy Shark's Secret

    Image of the Week

    The Chain catshark (Scyliorhinus retifer) fluoresces bright green when illuminated in blue light.

  • Seeing Single Molecules

    Seeing Single Molecules

    Image of the Week

    Pushing the limits of light microscopy to the nanoscale, new technology allows visualization of single proteins in cells.