NPR Story
11:02 am
Fri November 9, 2012

Scientists Solve Mystery of Earth's Shifting Poles

Originally published on Fri November 9, 2012 12:03 pm

Did you know that Earth's solid exterior can move around over its core, causing the planet's poles to wander back and forth? Adam Maloof, associate professor of geosciences at Princeton University, discusses the consequences of these shifts, and what may be causing them.