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Sequencing the dead to save the living: Reviving ancient genomes of long-extinct creatures offers a window into past extinctions—and may help prevent future die outs
No gene is an island: Even as biologists catalog the discrete parts of life forms, an emerging picture reveals that life’s functions arise from interconnectedness
The decider: Informing the debate over the reality of ‘free will’ requires learning something about the lateral habenula
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MEASURING MASERS

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Astronomers have used the radio-emitting water molecules (illustrated here), or masers, at the heart of the galaxy NGC 4258 to find a more accurate value of the Hubble constant and shed new light on dark energy. Full story Credit: Courtesy NRAO/AUI, Artist: John Kagaya

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