This week, a new 3D printer allows quick shifting between many materials, and understanding the link between gut microbes and liver disease.

00:46 A new dimension for 3D printers

A new nozzle lets a 3D printer switch between materials at a rapid rate, opening the door to a range of applications. Research Article: Skylar-Scott et al.; News and Views: How to print multi-material devices in one go

08:07 Research Highlights

10:17 Linking bacteria to liver disease

17:10 News Chat

‘Megaconstellations’ of satellites concern astronomers, and a report on the gender gap in chemistry. News: SpaceX launch highlights threat to astronomy from ‘megaconstellations’; News: Huge study documents gender gap in chemistry publishing

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14 November 2019: A rapid, multi-material 3D printer, and a bacterium’s role in alcoholic hepatitis

Nature Podcast