Computer artwork depicting division of stem cells. A stem cell is an undifferentiated call that can divide indefinitely in culture. It can differentiate to form specialized cells that have a particular function, for example red blood cells, or it can develop to produce all the cells within an organ. Stem cells, in particular those derived from foetal tissue, are used in genetic research.
Science Photo Library was founded in 1981 by Michael Marten, one of the authors of "Worlds Within Worlds", a book exploring different ways to observe the universe - from electron micrographs, to images of earthrise taken from the Apollo spacecraft. When Marten started receiving requests for the beautiful images in the book, he had an idea of setting up Science Photo Library.
Since then, Science Photo Library has continued to work alongside world acclaimed photographers and the leading science and medical experts to provide a central source of the best science and specialist imagery available. Although the collection started with scientific images, it has grown to encompass all aspects of science and their impact on everyday life.
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