# 1661: "The Earth's Core is Younger than its Surface"

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Text version: https://stenobird.com/podcast/interesting-things-with-jc-4639155/1661-the-earth-s-core-is-younger-than-its-surface.md
Podcast: [Interesting Things with JC](https://stenobird.com/podcast/interesting-things-with-jc-4639155)
Published: 2026-05-23T07:00:17+00:00
Episode link: https://jimconnors.net/interesting-things-with-jc/2026/5/23/1661-the-earths-core-is-younger-than-its-surface
Audio file: https://static1.squarespace.com/static/5bba2d6fca525b3efa21591f/t/6a0ef9e61683711a75b797e6/1779366381131/1661+-+Interesting+Things+-+Earths+Core+is+Younger+than+its+Surface.mp3
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JSON: https://stenobird.com/v1/public/podcasts/interesting-things-with-jc-4639155/episodes/1661-the-earth-s-core-is-younger-than-its-surface
Duration seconds: 155

## Resource

Interesting Things with JC #1661: "The Earth's Core is Younger than its Surface" – A clock at Earth’s core runs slightly slower than a clock on the surface, and over 4.5 billion years that tiny relativity effect leaves the center of the planet about two and a half years younger than the ground above it.

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## Transcript

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