Why the fight against malaria has stalled in southern Africa, and how to look for signs of life on Mars

Why the fight against malaria has stalled in southern Africa, and how to look for signs of life on Mars

On this week’s show: After years of steep declines, researchers are investigating why malaria deaths have plateaued, and testing the stability of biosignatures in space First up on the podcast this week, freelance science journalist Leslie Roberts joins host Sarah Crespi to discuss why malaria deaths have plateaued in southern Africa, despite years of declines in deaths and billions of dollars spent. Leslie visited Mozambique on a global reporting grant from the Pulitzer Center where researchers are investigating the cause of the pause. Also this week, producer Kevin McLean talks with astrobiologists Mickael Baqué and Jean-Pierre de Vera of the German Aerospace Center. They discuss their Science Advances paper about an experiment on the International Space Station looking at the stability of biosignatures in space and what that means for our search for life on Mars. This week’s episode was produced with help from Podigy. [Image: NASA/JPL-Caltech/ASU/MSSS; Music: Jeffrey Cook] [alt: enhanced-color image of Mars’ Jezero crater was taken by NASA’s Perseverance with podcast overlay symbol] Authors: Sarah Crespi; Leslie Roberts; Kevin McLean Episode page: https://www.science.org/doi/10.1126/science.ade7839 About the Science Podcast: https://www.science.org/content/page/about-science-podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

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Studying the changing of AI language inside swarms, how orangutans learn to forage, and an astrophysicist talks about loss

Studying the changing of AI language inside swarms, how orangutans learn to forage, and an astrophysicist talks about loss

First up on the podcast, Staff Reporter Tom Howarth joins host Sarah Crespi to talk about the language artificial intelligence agents evolve inside their swarms. Next on the show, producer Elah Feder...

24 Sep 48min

Can ‘assisted migration’ save forests? And the role of philosophy in science

Can ‘assisted migration’ save forests? And the role of philosophy in science

First up on the podcast, as the planet warms and forests burn, can we replant them with new trees that will thrive in the decades ahead? Associate Editor Katie Langin joins host Sarah Crespi to discus...

17 Sep 39min

Psychoactive substances helped spur Andean civilization, and breaking barriers to education

Psychoactive substances helped spur Andean civilization, and breaking barriers to education

First up on the podcast, producer Meagan Cantwell and freelance journalist Andrew Lawler discuss how psychoactive drugs might have shaped culture in pre-Inca Andean societies. They chat about how tech...

10 Sep 33min

Sex-reversing frogs, and Europe’s rising rates of a deadly tick-borne disease

Sex-reversing frogs, and Europe’s rising rates of a deadly tick-borne disease

First up on the podcast, Senior International Correspondent Richard Stone joins host Sarah Crespi to discuss how climate is pushing the disease-carrying tick Hyalomma marginatum out of its comfort zon...

3 Sep 27min

Making drugs in space, the man who fed India, and what narwhals can teach us about changing seas

Making drugs in space, the man who fed India, and what narwhals can teach us about changing seas

First up on the podcast, will it ever make economic sense to produce drugs and biomedical supplies in space? Associate Online News Editor Michael Greshko discusses his story on the researchers attempt...

27 Aug 49min

Why tracing cyclosporiasis is so tough, and a digestible probe for the microbiome

Why tracing cyclosporiasis is so tough, and a digestible probe for the microbiome

First up on the podcast, the News team’s Diverse Voices in Science Journalism interns Mona Patterson and Laura Martín Agudelo join host Sarah Crespi to talk over some of their reporting from the summe...

20 Aug 28min

A vest for blocking cosmic rays, and updates on NIH funding

A vest for blocking cosmic rays, and updates on NIH funding

First up on the podcast, ScienceInsider Editor Jocelyn Kaiser joins host Sarah Crespi for the latest science policy news. The two discuss recent grant cancellations by the U.S. National Institutes of ...

13 Aug 26min

Did meat or fruit give people big brains, and protecting bison diversity using ancient DNA

Did meat or fruit give people big brains, and protecting bison diversity using ancient DNA

First up on the podcast, Deputy News Editor Michael Price discusses the history of the North American bison population, its decline, and resurrection—and links to Indigenous cultures. He’s joined by U...

6 Aug 38min

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