The center of Earth is younger than the outer surface

Time is slower at planet’s core

illustration of a clock and earth

YOUNG AT HEART  A clock placed at the Earth’s center would run slower than one on your nightstand. That means Earth’s core is 2.5 years younger than its surface, new calculations suggest.

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Our home planet is young at heart. According to new calculations, Earth’s center is more than two years younger than its surface.