Earth's crust ranges from 5 to 70 kilometers in thickness and serves as the planet's outermost layer. This thin shell represents less than one percent of Earth's total mass, yet it's the only layer we ...

Some scientists think that Earth's inner core is actually made up of two similar but distinct layers. KATERYNA KON / SCIENCE PHOTO LIBRARY via Getty Images By studying seismic waves from earthquakes, ...

New research sheds light on the Earth's "innermost inner core," offering new insight into the formation of the planet and its magnetic field. From our morning news briefing to a weekly Good News ...

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