W33A protostar accretion disc. Artwork of the accretion disc (yellow-orange), the outer torus (cloudy, dusty ring), and polar outflow jets (blue) within the nebulae of the stellar nursery surrounding the W33A protostar. It has a mass more than ten times that of the Sun. W33A is 12,000 light years from Earth, in the constellation of Sagittarius. Artwork and research published in 2010.
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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