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Health Minister Aaron Motsolaedi faced an HIV/AIDS crisis when he took office in 2009. He's made great progress on that front. His new campaign: Convincing South Africans to live healthier lives.

The way the National Institutes of Health doles out research grants accentuates booms and busts in the financing of scientific research. More variety in the length of grants could help.

If you raised the price of Don Draper's cigarettes, would he have cut back on the whiskey? Probably not, but it works on most beer and spirits drinkers, a study finds. Wine drinkers, not so much.

The group calling itself Soldiers of the Caliphate released a video purportedly showing the beheading of kidnapped mountain guide Herve Gourdel.

President Obama has been reluctant to call it a war, yet the administration and the Pentagon boast of a 40-nation coalition and warn of a military operation that could last for years.

This short video tells the story of humanity, from beginning to end. Commentator Marcelo Gleiser says it invites us to reflect on who we are, where we came from and how we will chart our future.

The private operator of the Indiana Toll Road filed for bankruptcy this week. We take a closer look at private owners of public highways.

Some owners of Apple's new iPhone 6 and 6 Plus are discovering that their superslim glass and aluminum devices aren't holding up well in an environment that's usually safe: their pockets.

Scientists are deeply divided on whether lab-made flu viruses are legitimate medical research or national security threats. A new federal policy asks institutions to evaluate those risks early on.

A debate has flared surrounding ethics in video game journalism and the role and treatment of women in the video game industry. Attacks online have turned heated, vicious and ugly.