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Ariela Zebede
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Ariela Zebede

Ariela Zebede

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Who Should Control Earth's Thermostat?

Thick white sulfur dioxide smoke rises thousands of feet above Mount Pinatubo, Phillipines, June 1,1991. Romy Mariano/AP hide caption

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Romy Mariano/AP

Short Wave

Who Should Control Earth's Thermostat?

Solar geoengineering--the human attempt to cool the planet by reflecting sunlight away from Earth--is fraught with technological and ethical challenges. Maddie discusses some of these with contributor Ariela Zebede.

Who Should Control Earth's Thermostat?

Listen · 14:21
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Medicine And The Horseshoe Crab

Horseshoe Crab on the coast covered by seashells Arman Zhenikeyev/Getty Images hide caption

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Arman Zhenikeyev/Getty Images

Short Wave

Medicine And The Horseshoe Crab

Horseshoe crabs have been around for 450 million years — nearly unchanged. And their blood has helped the medical world make some fascinating discoveries. Emily Kwong talks with Ariela Zebede about these living fossils and their role in making medicine safer.

Medicine And The Horseshoe Crab

Listen · 13:45
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Is The Sperm Race A Fairy Tale?

Human egg cell, computer illustration. Kateryna Kon/Getty Images/Science Photo Libra hide caption

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Kateryna Kon/Getty Images/Science Photo Libra

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Is The Sperm Race A Fairy Tale?

A lot of us were taught that conception happens with a survivor-style sperm race — the fastest and strongest sperm fight to make it to the egg first. In this Back To School episode, we revisit this misleading narrative and learn just how active the egg and reproductive tract are in this process.

Is The Sperm Race A Fairy Tale?

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The Legacy of Trauma: Can Experiences Leave A Biological Imprint?

Can the epigenetic effects of experiences be inherited? Eternity in an Instant/Getty Images hide caption

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Eternity in an Instant/Getty Images

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The Legacy of Trauma: Can Experiences Leave A Biological Imprint?

Descendants of trauma victims seem to have worse health outcomes. Could epigenetics help explain why? Bianca Jones Marlin and Brian Dias walk us through the field of epigenetics and its potential implications in trauma inheritance.

The Legacy of Trauma: Can Experiences Leave A Biological Imprint?

Listen · 11:02
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Micro Wave: What Makes Curly Hair Curl?
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Short Wave

Micro Wave: What Makes Curly Hair Curl?

Hair scientist Crystal Porter explains the science behind curly hair (hint: It involves mushy cells in teeny-tiny tunnels). Plus, a bit of listener mail from you! Which you can always send by emailing shortwave@npr.org.

Micro Wave: What Makes Curly Hair Curl?

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