Tobacco is still the biggest cause of preventable death in the world. Although the total number of smokers is falling, a high percentage of teenagers and young people in their 20s continue to smoke.

Although many young people want to quit, few are successful. Most do not access face-to-face or...

In 2013 alone, more than 500 houses were demolished in Nashville, Tennessee, a sharp increase from previous years. And hundreds of additional teardowns are expected in a city that’s projected to add a million residents over the next...

Carl Sagan famously said we were the luckiest generation, to be present during the first reconnaissance of the solar system. The New Horizons mission to Pluto completes this half-century project with its stunning images and data. Meanwhile, however, space science has helped change dramatically our notions of...