An ancient solar storm helps pinpoint when Vikings lived in the Americas, and using magnets to deftly move non-magnetic metals.
**In this episode:**
00:53 Pinpointing Viking presence in North America
It’s well-understood that Vikings went to North America around a thousand years ago. However, working out a precise date has proven difficult. Now, thanks to an ancient solar storm, researchers have been able to identify an individual year when Vikings were definitely living on the continent.
*Research article: *Kuitems et al.)
14:57 Research Highlights
How shoulder muscles gave Pterosaurs an aerodynamic edge, and mysterious radio waves coming from near the centre of the Milky Way.
*Research Highlight: *How ancient reptiles were streamlined for flight)
*Research Highlight: *A mysterious radio signal object is beaming radio waves into the Milky Way)
17:45 Magnets move non-magnetic metals
Scientists have created an array of magnets capable of moving non-metallic objects in 6 dimensions. They hope their new approach could one day be used to clean up debris in space.
*Research article: *Pham et al.)
*News and Views: *Non-magnetic objects induced to move by electromagnets)
27:06 What Francis Collin’s retirement means for the US NIH
After 12 years, Francis Collins announced plans to retire from his role as Director of the United States National Institutes of Health. We discuss his legacy and what this means for the world’s biggest public funder of biomedical research.
*Editorial: *COVID, racism, China: three tests for the next NIH leader)
*News: *Francis Collins to step down at NIH: scientists assess his legacy)
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