All change at the Earth's core

It is hard to know what is going on over 3000 km beneath our feet, but until recently scientists were fairly confident that they understood the way the iron atoms in the Earth’s core packed together. However, new research has overturned conventional thinking and revealed that the structure of the core is not as straightforward as was once thought.

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<p><a href="http://www.physorg.com/news106488564.html">All change at the Earth's core</a></p> <p>It is hard to know what is going on over 3000 km beneath our feet, but until recently scientists were fairly confident that they understood the way the iron atoms in the Earth’s core packed together. However, new research has overturned conventional thinking and revealed that the structure of the core is not as straightforward as was once thought.</p>