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NASAhas released a book called Earth as Art, showing 75 stunning satellite images of formations around our planet.

The images appear in colors that clearly could not be natural to you. NASAexplains that the satellite's sensors can measure light outside of the visible range, so the images are not necessarily ones visible to the naked eye.

You can buy the book at the U.S. Government Printing Office. You can also get a free e-book version in PDF format.

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