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Rotation of Earth's Inner Core

Rotation of Earth's Inner Core Geography STEM

Scientists believe that Planet Earth has a solid iron core which is really, really hot.  How hot?  NASA gives us an answer:

At the heart of our planet lies a solid iron ball, about as hot as the surface of the sun. Researchers call it "the inner core."  

It's really a world within a world. The inner core is 70% as wide as the moon.  It spins at its own rate, as much as 0.2o of longitude per year faster than the Earth above it, and it has its own ocean:  a very deep layer of liquid iron known as "the outer core."

Scientists believe that the outer core is the source of Earth's geomagnetic field.

Click on the image for a larger view.

 

Media Credits

Image online, courtesy NASA.  PD

 

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"Rotation of Earth's Inner Core" AwesomeStories.com. Oct 07, 2013. Dec 14, 2017.
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