On Today's Podcast

Are natural history museums going extinct?

The country’s oldest natural history museum, in Philadelphia, has closed its doors to visitors. Will other museums follow?

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Most Recent Broadcast

September 25, 2026

Concerns about AI safety are growing. Two researchers explain the unintended consequences of training AI models and what questions remain. Underwater archaeologists are uncovering artifacts from early human settlements that were inundated by glacial meltwater at the end of the last ice age. Plus, research on concussions, and new treatments in the works for people with celiac disease.

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Segment

17:15

One Last Martian Love Fest

Where did the Martian magnetic field go? Can we drill for water at its poles? Your Red Planet questions answered with ‘The Sirens of Mars’ author Sarah Stewart Johnson.

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