A new study offers compelling evidence that Earth's inner core reversed direction and is slowing down.
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Scientists discover onion-like layering in Earth’s inner core
Earth’s inner core has long challenged researchers because seismic waves do not move through it uniformly. Compressional waves generated by earthquakes travel roughly 3 to 4 percent faster along Earth ...
Earth's inner core is solid and blistering hot. For decades, scientists have known the inner core is solid thanks to the pioneering work of Danish seismologist Inge Lehmann, who first proposed its ...
The mysterious iron ball at the center of the Earth may have stopped spinning and reversed direction
Earth's inner core may have paused and reversed its spin, a new study suggests. Earthquakes and nuclear blasts can send seismic waves through the mysterious solid-iron core. Those waves hint that the ...
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