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Seismic waves are helping scientists to plumb the world's deepest mystery: the planet's inner core. Thanks to a novel application of earthquake-reading technology, researchers have found that the ...

Whether you're reading the paper or thinking through your schedule for the day, chances are that you're hearing yourself speak even if you're not saying words out loud. This internal speech -- the ...

A quirky material that behaves like a mishmash of liquid and solid could be hidden deep in the Earth. Computer simulations described in two studies suggest that the material in Earth’s inner core, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One day, about a billion years ago, Earth's inner core had a growth spurt. The molten ball of ...

SAN FRANCISCO — Earth’s deepest realm may be billions of years older than previously thought. New simulations of the planet’s formation suggest that the innermost part of the inner core solidified ...