Monitoring a nearby star’s midlife crisis, and the energetic cost of chewing

Monitoring a nearby star’s midlife crisis, and the energetic cost of chewing

On this week’s show: An analog to the Maunder Minimum, when the Sun’s spots largely disappeared 400 years ago, and measuring the energy it takes to chew gum We have known about our Sun’s spots for centuries, and tracking this activity over time revealed an 11-year solar cycle with predictable highs and lows. But sometimes these cycles just seem to stop, such as in the Maunder Minimum—a 70-year period from 1645 to 1715 with little or no sunspot activity. News Intern Zack Savitsky joins host Sarah Crespi to discuss a nearby star that appears to have entered a similar quiet period, and what we can learn from it about why stars take naps. Also this week on the show, Adam van Casteren, a postdoctoral researcher in the School of Biological Sciences at the University of Manchester, joins Sarah to talk about measuring how much energy we use to chew up food. Based on the findings, it appears humans have turned out to be superefficient chewers—at least when it comes to the gum used in the study—with less than 1% of daily energy expenditure being spent on mastication. This week’s episode was produced with help from Podigy. [Image: NASA/SDO; Music: Jeffrey Cook] [alt: photo of the largest sunspot from our latest solar cycle with podcast overlay symbol] Authors: Sarah Crespi; Zack Savitsky Episode page: https://www.science.org/doi/10.1126/science.ade4241 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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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...

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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

AI’s influence on society, measuring muscles, and a Crick biography

AI’s influence on society, measuring muscles, and a Crick biography

First up on the podcast, we catch up with Celina Zhao, a staff reporter for Science’s AI In Science reporting initiative. She talks with host Sarah Crespi about artificial intelligence’s knack for fin...

30 Juli 46min

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