Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.
Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we ...
Measurements of seismic waves over many years suggest the Earth's core is deformed and reshaped by conditions of extreme heat ...
The Purple Earth Hypothesis has significant implications for the search for life on other planets.
About 700 million years ago, Earth was entombed in a veneer of ice hundreds of feet thick—a frozen state scientists refer to ...
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