On Today's Podcast

Are Ultramarathoners Just Built Different?

Ultramarathoners can run with what seems like superhuman stamina. But are their bodies much different than the rest of ours?

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Most Recent Broadcast

January 2, 2026

A look back at the biggest science stories of 2025, and a few you may have missed. Plus, over the past year, most of your body has replaced itself cell by cell. What can we learn from other animals’ dramatic feats of regeneration? And, ultramarathoners can run with what seems like superhuman stamina. But are their bodies much different than the rest of ours?

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Segment

25:51

How Games Move Us

Some of today’s video games are pushing players into new emotional territory, engaging complex feelings like complicity, empathy, and grief.

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Segment

16:13

The Road to LIGO

Janna Levin’s book Black Hole Blues and Other Songs from Outer Space reveals what it took to pull off one of “big science’s” biggest experiments: the Laser Interferometer Gravitational-Wave Observatory (LIGO).

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