Beyer's observations of Mars. Six dated and labelled observations of Mars made during the opposition of 1924 by M. Beyer of the Hamburg Bergedorf Observatory, Germany. An opposition is the point where a planet is closest to Earth during its orbit around the Sun. Beyer observed distinctive features on Mars, such as Sinus Sabaeus, Syrthis Major and the polar caps. However, he failed to see the Martian 'canals' that the US astronomer Percival Lowell had claimed existed. It is now accepted that these 'canals' were an optical illusion.
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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