Read Roald Dahl's Powerful Pro-Vaccination Letter (From 1988)

Roald Dahl – author of such books as Charlie and the Chocolate Factory, James and the Giant Peach, and Matilda – lost his eldest daughter, Olivia, to measles in 1962. Twenty-six years later, he penned a cogent and gut-wrenching plea to parents, urging them have their children vaccinated against the disease. » 1/31/15 2:00pm 1/31/15 2:00pm

High-Speed Video Reveals The Source Of That Incredible After-Rain Smell

That smell has a name. It's called petrichor. For decades, scientists have speculated on where this smell comes from, but the mechanism behind the phenomenon has remained elusive. Now, researchers at MIT studying high-speed video of raindrops think they've found the answer: The smell is released in tiny aerosol clouds… » 1/15/15 5:30pm 1/15/15 5:30pm

From AIDS to Ebola, Why Is Global Health Security Failing?

Amid news that the number of Ebola cases had reached more than 6,000 in West Africa, public health and international security experts from around the world gathered in Washington, DC last week for a candid discussion of how the global community failed to contain the disease—and what lessons still needed to be learned. » 10/07/14 12:10pm 10/07/14 12:10pm