Picture of the Day: A Grand Optical Illusion From Space

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NASA astronaut Don Pettit took this picture of the Grand Canyon from the International Space Station, where he currently lives. In the picture, because of the angle of the lighting, the canyon appears almost in relief, raised above the plateau of the surrounding land, as opposed to carved out below it. This and other images of the Grand Canyon from the International Space Station can be found on Pettit's NASA blog.

Below, recent Pictures of the Day:

Image: NASA.

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Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Business Channel. She was previously an associate editor at The Wilson Quarterly.

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