Add Yahoo as a preferred source to see more of our stories on Google. Now, a new study seeking to explain anomalous data suggests Earth's core may be layered like an onion. Scientists in Germany ...

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 ...

thermal characteristics (temperature changes), chemical composition, movement, and density. Each of the layers are bounded by "pauses" where the greatest changes in thermal characteristics, chemical ...