A map of neurons of the mouse retina, reconstructed automatically by artificial intelligence from electron microscopic images. A. Zlateski based on data from K. Briggman, M. Helmstaedter, and W. Denk/MIT/Seung hide caption

toggle caption A. Zlateski based on data from K. Briggman, M. Helmstaedter, and W. Denk/MIT/Seung

After the earthquake, workers were sent inside Reactor 1 at the Fukushima plant to release some of the pressure building up inside the reactors. Frontline hide caption

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Farmer Alan Madison fills a seed hopper with Monsanto hybrid seed corn near Arlington, Illinois, U.S. A group of organic and other growers say they're concerned they'll be sued by Monsanto if pollen from seeds like these drift onto their fields. Daniel Acker/Landov hide caption

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Astrophysicist Neil deGrasse Tyson says valuing space exploration "transforms the culture into one that values science and technology." AP hide caption

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Pinwheels like these are often used to test nerve responses. iStockphoto.com hide caption

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Alvaro Heinzen/iStockphoto

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