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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

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Evin Gultepe, Gracias Lab, Johns Hopkins University.

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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NASA Ames Research Center

Can You Hear Me Now? Cellphone Satellites Phone Home

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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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Stephen J. Krasemann/Science Source

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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New York University/AP
iStockphoto.com

What Does Modern Prejudice Look Like?

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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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YouTube

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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NASA

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

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