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Big Sibling's Big Influence: Some Behaviors Run In The Family

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A miniature ninja throwing star or a surgical device? The microgripper, shown here coming out of a catheter tube, is activated by body heat. The sharp appendages fold up when the device warms up. Evin Gultepe, Gracias Lab, Johns Hopkins University. hide caption

toggle caption Evin Gultepe, Gracias Lab, Johns Hopkins University.

Studying Earth To Learn About Mars

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Utah's Fossil Finds Describe an Ancient World

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Three PhoneSats, like the one seen here during a high-altitude balloon test, were launched into space on Sunday. The slightly modified cellphone satellites cost a few thousand dollars in parts. NASA Ames Research Center hide caption

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Can You Hear Me Now? Cellphone Satellites Phone Home

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A microscopy image of a rat pancreas shows the insulin-making cells in green. Masur/Wikimedia.org hide caption

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Researchers are using small remote-controlled planes to survey the populations of the greater sage grouse. Stephen J. Krasemann/Science Source hide caption

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From Battle To Birds: Drones Get Second Life Counting Critters

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In this Jan. 18 photo provided by the NYU Langone Medical Center, a technician examines mice to determine their health at the hospital's complex in New York. New York University/AP hide caption

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A Tale Of Mice And Medical Research, Wiped Out By A Superstorm

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What Does Modern Prejudice Look Like?

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Oliver Sacks: Hallucinations

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Researchers used a clip from the David Lynch film Rabbits to make volunteers uneasy. Afterward some people got Tylenol, which appeared to help them cope. YouTube hide caption

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Did You Notice This Seemed To Be A Crazy News Week?

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The small squares superimposed on this image of the Milky Way galaxy show where in the sky the Kepler telescope is hunting for Earth-like planets. Kepler, which launched in 2009, has identified more than 100 planets. NASA hide caption

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Kepler Telescope Spots 3 New Planets In The 'Goldilocks Zone'

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Can Acid Neutralizers Help Coral Reefs Bounce Back?

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