Featured Stories: Beyond the Condom By Nathaniel Scharping Why can't scientist create a safe, reliable birth control for men? One Big Fat Truth By Tamar Haspel A lot of research has gone into why people are overweight. Perhaps it's simple: More calories in than calories out equals more weight gain. Building a Better Painkiller By Jonathan Keats Opioids are effective at treating chronic pain, but they're also addictive and sometimes deadly. In the midst of an opioid epidemic, researchers are on the hunt for safer painkillers. Africa's Big Break By Shannon Hall Earth's continents once constituted a single landmass called Pangaea before geological forces ripped it apart. Another continental tear –the first one we can study in real time – could be underway.