Folding DNA into teddy bears and getting creative about gun violence research

Folding DNA into teddy bears and getting creative about gun violence research

This week, three papers came out describing new approaches to folding DNA into large complex shapes—20 times bigger than previous DNA sculptures. Staff Writer Bob Service talks with Sarah Crespi about building microscopic teddy bears, doughnuts, and more from genetic material, and using these techniques to push forward fields from materials science to drug delivery. Sarah also interviews Philip Cook of Duke University in Durham, North Carolina, about his Policy Forum on gun regulation research. It’s long been hard to collect data on gun violence in the United States, and Cook talks about how some researchers are getting funding and hard data. He also discusses some strong early results on open-carry laws and links between gun control and intimate partner homicide. Listen to previous podcasts. [Image: : K. WAGENBAUER ET AL., NATURE, VOL. 551, 2017; Music: Jeffrey Cook] Learn more about your ad choices. Visit megaphone.fm/adchoices

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Building better working dogs, and watching a black hole form

Building better working dogs, and watching a black hole form

First up on the podcast, more than half of all dogs going through service animal training don’t make it to graduation. Producer Kevin McLean journeys with Online News Editor David Grimm to Canine Comp...

12 Helmi 34min

Engineering safer football helmets, and the science behind drug overdoses

Engineering safer football helmets, and the science behind drug overdoses

First up on the podcast, host Sarah Crespi and Staff Writer Adrian Cho talk football and the latest science behind helmets engineered to reduce head injuries. Have better materials and testing led to ...

5 Helmi 39min

Shielding astronauts from cosmic rays, and planning the end of fossil fuels

Shielding astronauts from cosmic rays, and planning the end of fossil fuels

First up on the podcast, how do we protect astronauts when they leave the shelter of Earth’s protective magnetic fields and face the slow, constant bombardment of space radiation? Freelance science jo...

29 Tammi 38min

Tracking falling space debris via sonic booms, and getting drunk off your own microbes

Tracking falling space debris via sonic booms, and getting drunk off your own microbes

First up with Jennie Erin Smith, Science’s new senior biomedicine reporter, we delve into: autobrewery syndrome, when microbes inside the human gut make too much alcohol; how doctors can use a public ...

22 Tammi 32min

Reversing ecological destruction in the Galápagos, and finally mapping Antarctica’s surface

Reversing ecological destruction in the Galápagos, and finally mapping Antarctica’s surface

First up on the podcast, freelance science journalist Sofia Quaglia talks about her visit to the Galápagos archipelago and how researchers there are working to restore the islands to their former ecol...

15 Tammi 30min

The real da Vinci code, and the world’s oldest poison arrows

The real da Vinci code, and the world’s oldest poison arrows

First up on the podcast, scholars are on a quest to find Leonardo da Vinci’s DNA. With no direct descendants, the hunt involves sampling the famous polymath’s papers, paintings, and distant cousins. C...

8 Tammi 27min

Looking for continents on exoplanets, and math is hard for mathematicians, too

Looking for continents on exoplanets, and math is hard for mathematicians, too

First up on the podcast, the best images of exoplanets right now are basically bright dots. We can’t see possible continents, potential oceans, or even varying colors. To improve our view, scientists ...

1 Tammi 43min

This year’s biggest breakthrough and top news stories

This year’s biggest breakthrough and top news stories

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi to talk about this year’s best online news stories—top performers and staff picks alike. Together they journey the scien...

18 Joulu 202533min

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