A jump in rates of knee arthritis, a brief history of eclipse science, and bands and beats in the atmosphere of brown dwarfs

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This week we hear stories on a big jump in U.S. rates of knee arthritis, some science hits and misses from past eclipses, and the link between a recently discovered thousand-year-old Viking fortress and your Bluetooth earbuds with Online News Editor David Grimm. Sarah Crespi talks to Daniel Apai about a long-term study of brown dwarfs and what patterns in the atmospheres of these not-quite-stars, not-quite-planets can tell us. Listen to previous podcasts. [Image: NASA/JPL-Caltech; Music: Jeffrey Cook]

256 episodes available. A new episode about every 7 days averaging 23 mins duration .