History : Goats and Soda History

As history tells it, young Edward Jenner heard a milkmaid brag that having cowpox made her immune to smallpox. And years later, as a doctor, he drew matter from a cowpox pustule on the arm of a milkmaid to vaccinate a young test subject (depicted in the drawing above). A researcher now weighs in on the veracity of the milkmaid stories. The New York Academy of Medicine Library (nyamcenterforhistory.org) hide caption

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The New York Academy of Medicine Library (nyamcenterforhistory.org)

A new study finds people all over the world are able to differentiate between lullabies and dance songs from cultures they're unfamiliar with. Klubovy/Getty Images hide caption

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Klubovy/Getty Images

Some Types Of Songs Are Universally Identifiable, Study Suggests

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The Permafrost Tunnel Research Facility, dug in the mid-1960s, allows scientists a three-dimensional look at frozen ground. Kate Ramsayer/NASA hide caption

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Kate Ramsayer/NASA

Is There A Ticking Time Bomb Under The Arctic?

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