Earth’s interior

Earth's surface water dives deep, transforming core's outer layer.

Scientists improve measurement of the earth's rotation.

Heterogeneity of earth's mantle may be relics of moon formation.

Plate tectonic surprise!

Seismologists probe Earth’s inner core.

Our planet's water must have arrived late in the history of Earth's formation.

The volcano erupts mud, fluids and gas from the planets interior.

The layer is likely dense yet thin.

The study might help settle a long-standing debate about how tectonic plates move.

Ancient rocks hold clues.

Scientists have never directly observed convective flows or how they may be changing.

Microbes in pitch-dark aquifers as important primary producers.