Evolution of the Universe. Computer artwork showing the evolution of the Universe from the Big Bang (far left) 12-15 billion years ago to the present day (far right). Immediately after the Big Bang was the Plank Era (yellow) during which all four forces were unified. This symmetry then breaks, leading to the inflation period (orange) a rapid time of exponential expansion. The universe begins to cool and atomic nuclei can form (nucleosynthesis, red). After 300,000 years (pink) atoms start to form and after 1 billion years (purple) galaxies start to form.
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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