What is sea level rise? (with Dr. Renee Colli...

MRIs are loud. They’re huge. They’re magnetic. But what are they actually doing? This week, we bring Claire back to help us connect the dots between NMR (yes, organic chem flashbacks) and MRI. How does a technique built on tiny hydrogen protons turn into a 3D image of your brain? ...  Show more

#079 Rebroadcast Glass. The more you look at it, the more clear it becomes that it holds some serious mysteries. So what really is glass? Is it a liquid? How is it different from typical solids? Does it flow and ooze over time? Is that why old windows are thicker at the bottom? L ...  Show more

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 ...  Show more

All aboard the Nathaniel B. Palmer, a research vessel making its way through the waters of West Antarctica. Journalist Sofia Moutinho is joining a team of chemists trying to find out how glacial melting is changing ocean chemistry—and what those changes might mean for the global ...  Show more

Cape Cod communities are facing an expensive mandate to clean up their wastewater. Urine diversion or “pee-cycling” could be a cost-effective pollution solution. In the third and final installment of our three-part Fascination series about Cape Cod’s “yellow tide,” environmental ...  Show more

Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a "barred spiral" and what does that have to do with our core? I discuss these questions and more in today's Ask a Spaceman!