How Big Is the Milky Way?
Our home galaxy is bigger than previously thought. ...read more
Our home galaxy is bigger than previously thought. ...read more
African Americans face higher risks for many diseases. This is partly due to poverty, discrimination and lack of access to care. But there may be something different about the higher rates of Alzheimer's. ...read more
Adults who were fully immunized as children are protected against tetanus and diphtheria — and do not need booster shots. ...read more
Meanwhile, the Colorado Rockies have so far received a bounty of snow. But new research portends a dry future ahead for 40 million people in the western U.S. and Mexico. ...read more
A third of all food produced is lost or wasted. Here are some strategies to waste less food in your home. ...read more