Research Team Finds Evidence Cacao Ritually Used in Chaco Canyon

(PhysOrg.com) -- Inhabitants of Chaco Canyon apparently drank chocolate from cylinders like these about a thousand years ago. That’s the finding in a paper published this week by PNAS, a publication of the National Academy ...

Super-resolution microscopy takes on a third dimension

The shapes of some of the tiniest cellular structures are coming into sharper focus at the Howard Hughes Medical Institute's Janelia Farm Research Campus, where scientists have developed a new imaging technology that produces ...

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