In this week's science roundup: drinking raw milk was always risky, but now there are added concerns over the spread of bird flu into dairy cows. An intense geomagnetic storm led to stunning auroras across the globe last week–and similar storms could mess with satellites and electricity...

In the first episode of a three-part series, environmental reporter Barbara Moran is on Cape Cod to find out why the crystal clear water there is turning “pea-soup green”—and how communities are scrambling to clean it up. For more information, read WBUR’s coverage of the efforts to improve Cape...