Breeding sows in crates at a subsidiary of Smithfield Foods in 2010. The photo was shot by the Humane Society as part of an undercover investigation. Humane Society/Associated Press hide caption

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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

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The Man Working To Reverse-Engineer Your Brain

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'SETI' Site Up Again And Searching For Intelligent Life

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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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One Year Later, 'Inside Japan's Nuclear Meltdown'

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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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'Space Chronicles': Why Exploring Space Still Matters

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

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New Methods Could Speed Up Repair Of Injured Nerves

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Study Suggests Way To Create New Eggs In Women

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Science Diction: The Origin Of 'Tuberculosis'

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Powering Up...With A Microbial Fuel Cell

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Genetic Test Reveals Unexpected Data

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