STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Cancer cell culture, coloured scanning electron micrograph (SEM). The cancer cells have been grown on a support with holes, allowing them to show their ability to migrate (metastasise). This is the process by which cancer spreads in the body. Magnification: x2000 when printed at 10 centimetres wide.
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