Researchers at Stanford University have found a way to move muscles with pulses of light, reports Technology Review's Erika Jonietz. The study, published in Nature Medicine, describes what the researchers are calling "optogenetics" — a technology which uses light-sensitive proteins from a single-celled alga placed on the nerve and pulses of light to trigger muscle movement, Jonietz says.

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CNBC reports that Amazon invested in the startup Grail as it sees an opportunity for its cloud computing company in genomics.

Lawrence Krauss writes at Slate that science is needed for good public policy and should not be ignored.

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