On Today's Podcast

Asha de Vos’ journey from deck hand to marine science leader

In a 2025 story, Asha de Vos tells how she became the first Sri Lankan to earn a PhD studying marine mammals, then built a biology program.

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Today's Broadcast

July 24, 2026

Archeologists are piecing together the lives of ordinary Pompeii residents, from a fish sauce entrepreneur to an enterprising businesswoman. Plus, Andrea Ghez developed a way to peer through dust clouds and observe stars orbiting the supermassive black hole at the center of the Milky Way. And, what do we know, and not know, about SSRI antidepressant withdrawal?

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Segment

16:37

Redefining the Kilogram

All the scales in the world are calibrated against a 125-year-old chunk of metal in a vault on the outskirts of Paris. Now scientists are looking to redefine the standard of what “kilogram” really means.

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