Radio Lab - The Milky Way Source of Radio Waves

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Astronomers have detected an intermittent source of radio waves near the centre of the galaxy that doesn't seem to fit the profile of any known astrophysical phenomenon. The unusual omissions were first spotted in january 20 20 by the australian square kilometer array pathfinder. It stayed bright for about a week and then vanished. When the pathfinder aray looked again, sometimes it was on, other times it was off. But the researchers also spotted the source with the mere cat aray in south africa.

An ancient solar storm helps pinpoint when Vikings lived in the Americas, and using magnets to deftly move non-magnetic metals.

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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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