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Volcanoes May Have Sparked Little Ice Age

A mysterious, centuries-long cool spell, dubbed the Little Ice Age, appears to have been caused by a series of volcanic eruptions and sustained by sea ice, a new study indicates. [More]

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Did Leonardo da Vinci Copy His Famous "Vitruvian Man"?

Leonardo da Vinci 's drawing of a male figure perfectly inscribed in a circle and square, known as the "Vitruvian Man," illustrates what he believed to be a divine connection between the human form and the universe. Beloved for its beauty and symbolic power, it is one of the most famous images in the world

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Experts Weigh In on Bird Flu Research

Earlier this month, the scientists who altered the H5N1 virus to create a more contagious strain that's transmissible between ferrets, agreed to a temporary moratorium, due to safety concerns. The NewsHour reported the story here and here . [More]

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What a Yawn Says about Your Relationship

You can tell a lot about a person from their body. And I don’t just mean how many hours they spend at the gym, or how easy it is for them to sweet-talk their way out of speeding tickets. For the past several decades researchers have been studying the ways in which the body reveals properties of the mind

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Proteus: How Radiolarians Saved Ernst Haeckel

Ernst Haeckel around Christmas 1860, when he was 26, the year after he returned from Italy. Ernst Haeckel had spent an unhappy year practicing medicine when his parents finally consented to pay for a year of scientific study and travel in Italy. It was 1859, and he was 25

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