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Why Earth’s Core Is Younger Than Its Surface

Season 53 | 6m 00s

Earth’s core is 2.5 years younger than the surface. According to Einstein’s theories of general and special relativity, time passes differently for different observers based on velocity and gravity. And those theories have helped us with navigation and fighting climate change.

National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust and PBS viewers.
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