Earth.com

Earth’s inner core may be layered like an onion

Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

Silicon and carbon in iron may explain the onion-like layering of Earth’s inner core

Earth’s inner core has long puzzled scientists because seismic waves move through it unevenly. Compressional waves from ...
Earth.com

Earth's core does much more than generate the planet's magnetic field

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.
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Silicon and carbon could explain Earth’s onion-like inner core

Deep beneath our feet, far beyond the reach of drills or submersibles, Earth hides a solid metal heart that behaves in ways geophysicists have struggled to explain. New experiments now suggest that a ...