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
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
The first working seismometer on Mars has detected 174 marsquakes in just 10 months. The results confirm that the Red Planet is both seismically and volcanically active. ...read more